CVE-2023-27997 (GCVE-0-2023-27997)
Vulnerability from cvelistv5 – Published: 2023-06-13 08:41 – Updated: 2026-07-31 03:55- CWE-122 - Execute unauthorized code or commands
| URL | Tags |
|---|---|
| https://fortiguard.com/psirt/FG-IR-23-097 | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Fortinet | FortiOS-6K7K |
Affected:
7.0.10
Affected: 7.0.5 Affected: 6.4.12 Affected: 6.4.10 Affected: 6.4.8 Affected: 6.4.6 Affected: 6.4.2 Affected: 6.2.9 , ≤ 6.2.13 (semver) Affected: 6.2.6 , ≤ 6.2.7 (semver) Affected: 6.2.4 Affected: 6.0.12 , ≤ 6.0.16 (semver) Affected: 6.0.10 |
guessed | |
| Fortinet | FortiProxy |
Affected:
7.2.0 , ≤ 7.2.3
(semver)
Affected: 7.0.0 , ≤ 7.0.9 (semver) Affected: 2.0.0 , ≤ 2.0.12 (semver) Affected: 1.2.0 , ≤ 1.2.13 (semver) Affected: 1.1.0 , ≤ 1.1.6 (semver) |
guessed | |
| Fortinet | FortiOS |
Affected:
7.2.0 , ≤ 7.2.4
(semver)
Affected: 7.0.0 , ≤ 7.0.11 (semver) Affected: 6.4.0 , ≤ 6.4.12 (semver) Affected: 6.2.0 , ≤ 6.2.13 (semver) Affected: 6.0.0 , ≤ 6.0.16 (semver) |
guessed |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-122 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | FortiOS and FortiProxy SSL-VPN |
| Due Date | 2023-07-04 |
| Date Added | 2023-06-13 |
| Vendorproject | Fortinet |
| Vulnerabilityname | Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability |
| Knownransomwarecampaignuse | Known |
References
ENISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Csirt Report
Signal: Confirmed Compromise
Confidence: 75%
Source: enisa-cnw-kev
Details
| Cwes | |
|---|---|
| Euvd | EUVD-2023-31722 |
| Notes | |
| Catalog | ENISA / EU CSIRTs Network (CNW) KEV JSON |
| Product | FortiOS and FortiProxy |
| Datereported | 2025/01/23 |
| Originsource | CNW |
| Patchedsince | 2023/06/09 |
| Vendorproject | Fortinet |
| Exploitationtype | ransomware |
| Vulnerabilityname | |
| Threatactorsexploiting |
References
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Public Report
Signal: Confirmed Compromise
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below,... |
| Vendor | Fortinet |
| Product | FortiOS-6K7K, FortiProxy, FortiOS |
| Added Date | 2023-06-13T00:00:00.000Z |
| Cvss Score | 9.2 |
| Epss Score | None |
| Cvss Severity | CRITICAL |
| Epss Percentile | None |
| Used In Malware | yes |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T12:23:30.864Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-23-097",
"tags": [
"x_transferred"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-27997",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2023-06-12T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-06-13",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-31T03:55:27.798Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-06-13T00:00:00.000Z",
"value": "CVE-2023-27997 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FortiOS-6K7K",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "7.0.10"
},
{
"status": "affected",
"version": "7.0.5"
},
{
"status": "affected",
"version": "6.4.12"
},
{
"status": "affected",
"version": "6.4.10"
},
{
"status": "affected",
"version": "6.4.8"
},
{
"status": "affected",
"version": "6.4.6"
},
{
"status": "affected",
"version": "6.4.2"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.7",
"status": "affected",
"version": "6.2.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.2.4"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.12",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.10"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiProxy",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.3",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.9",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "2.0.12",
"status": "affected",
"version": "2.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.2.13",
"status": "affected",
"version": "1.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.1.6",
"status": "affected",
"version": "1.1.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiOS",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.4",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.11",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.12",
"status": "affected",
"version": "6.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:R",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Execute unauthorized code or commands",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-06-13T08:41:47.415Z",
"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-23-097",
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
}
],
"solutions": [
{
"lang": "en",
"value": "Please upgrade to FortiOS-6K7K version 7.0.12 or above\r\nPlease upgrade to FortiOS-6K7K version 6.4.13 or above\r\nPlease upgrade to FortiOS-6K7K version 6.2.15 or above\r\nPlease upgrade to FortiOS-6K7K version 6.0.17 or above\r\nPlease upgrade to FortiProxy version 7.2.4 or above\r\nPlease upgrade to FortiProxy version 7.0.10 or above\r\nPlease upgrade to FortiOS version 7.4.0 or above\r\nPlease upgrade to FortiOS version 7.2.5 or above\r\nPlease upgrade to FortiOS version 7.0.12 or above\r\nPlease upgrade to FortiOS version 6.4.13 or above\r\nPlease upgrade to FortiOS version 6.2.14 or above\r\nPlease upgrade to FortiOS version 6.0.17 or above"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2023-27997",
"datePublished": "2023-06-13T08:41:47.415Z",
"dateReserved": "2023-03-09T10:09:33.119Z",
"dateUpdated": "2026-07-31T03:55:27.798Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2023-27997",
"cwes": [
"CWE-122"
],
"dateAdded": "2023-06-13",
"dueDate": "2023-07-04",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "https://www.fortiguard.com/psirt/FG-IR-23-097; https://nvd.nist.gov/vuln/detail/CVE-2023-27997",
"product": "FortiOS and FortiProxy SSL-VPN",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.",
"vendorProject": "Fortinet",
"vulnerabilityName": "Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability"
},
"cnw_known_exploited": {
"CVE": "CVE-2023-27997",
"EUVD": "EUVD-2023-31722",
"cwes": "-",
"dateReported": "23/01/25",
"exploitationType": "ransomware",
"notes": "-",
"originSource": "cnw",
"product": "FortiOS and FortiProxy",
"shortDescription": "-",
"threatActorsExploiting": "-",
"vendorProject": "Fortinet",
"vulnerabilityName": "-"
},
"epss": {
"cve": "CVE-2023-27997",
"date": "2026-11-13",
"epss": "0.8675",
"percentile": "0.99747"
},
"fkie_nvd": {
"cisaActionDue": "2023-07-04",
"cisaExploitAdd": "2023-06-13",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E6BBF05F-4967-4A2E-A8F8-C2086097148B",
"versionEndIncluding": "1.1.6",
"versionStartIncluding": "1.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "33B84D9A-55E3-4146-A55A-ACB507E61B05",
"versionEndIncluding": "1.2.13",
"versionStartIncluding": "1.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7C1D5E6B-A23E-4A92-B53C-720AFEB1B951",
"versionEndIncluding": "2.0.12",
"versionStartIncluding": "2.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DAC18F7E-5242-4F36-BB42-FEC33B3AC075",
"versionEndIncluding": "7.0.9",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3A99FF48-370E-4D2A-B5CC-889EA21AB213",
"versionEndIncluding": "7.2.3",
"versionStartIncluding": "7.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8EA5512D-6EE5-4DF3-A960-C02394F25225",
"versionEndIncluding": "6.0.16",
"versionStartIncluding": "6.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3CD57A5A-2B13-495A-8530-8F97E1720602",
"versionEndIncluding": "6.2.13",
"versionStartIncluding": "6.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5E99B6E5-7EC3-406C-AFAC-A5E32DE266DF",
"versionEndIncluding": "6.4.12",
"versionStartIncluding": "6.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C2573C90-BE6A-4D5D-A223-F09213318909",
"versionEndIncluding": "7.0.11",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4AB643A8-B52F-4D54-B816-28A6401BAA25",
"versionEndIncluding": "7.2.4",
"versionStartIncluding": "7.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6D997493-24C2-4A78-9DF0-6438E9415A3C",
"versionEndIncluding": "6.0.16",
"versionStartIncluding": "6.0.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0A0D0D55-1A51-454D-A8B1-D7100D453102",
"versionEndIncluding": "6.2.13",
"versionStartIncluding": "6.2.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.0.10:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6AF1FA-A034-439A-876B-BFA1BE7DE15E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.4:*:*:*:*:*:*:*",
"matchCriteriaId": "9694FC0C-408A-4892-ADD1-F36F4BBBD9EF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.6:*:*:*:*:*:*:*",
"matchCriteriaId": "2B8A132F-601F-4129-BFCA-3A976A711D5A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.7:*:*:*:*:*:*:*",
"matchCriteriaId": "90600B14-07C4-455D-9FC1-17034D91B987",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.2:*:*:*:*:*:*:*",
"matchCriteriaId": "B28478DA-8D10-4A8E-81EA-D3DF421E5089",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.6:*:*:*:*:*:*:*",
"matchCriteriaId": "C2F935F9-5B6A-47C2-8F65-7A1E8BB061FF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.8:*:*:*:*:*:*:*",
"matchCriteriaId": "751D2FC7-482F-4C6B-95DB-244004A2738E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.10:*:*:*:*:*:*:*",
"matchCriteriaId": "EEE44B20-6F00-4962-9929-5A5054BBA94C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.12:*:*:*:*:*:*:*",
"matchCriteriaId": "EB2FF1DA-001B-4CA1-9F46-427D9C92CBC6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*",
"matchCriteriaId": "48D0E8CC-3815-4697-86D0-DC7F66E70520",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*",
"matchCriteriaId": "78C6C937-4477-438D-A252-E4102D758120",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:fortinet:fortigate_6000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "3BB410C9-CDD4-4068-97E0-6D83AE62B7F1",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:fortinet:fortigate_7000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E0CBA773-10C1-410D-BB01-771F454ABEBA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests."
}
],
"id": "CVE-2023-27997",
"lastModified": "2024-11-21T07:53:53.957",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-06-13T09:15:16.613",
"references": [
{
"source": "psirt@fortinet.com",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
}
],
"sourceIdentifier": "psirt@fortinet.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-122"
}
],
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "FortiOS-6K7K",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "7.0.10"
},
{
"status": "affected",
"version": "7.0.5"
},
{
"status": "affected",
"version": "6.4.12"
},
{
"status": "affected",
"version": "6.4.10"
},
{
"status": "affected",
"version": "6.4.8"
},
{
"status": "affected",
"version": "6.4.6"
},
{
"status": "affected",
"version": "6.4.2"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.7",
"status": "affected",
"version": "6.2.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.2.4"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.12",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.10"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiProxy",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.3",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.9",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "2.0.12",
"status": "affected",
"version": "2.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.2.13",
"status": "affected",
"version": "1.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.1.6",
"status": "affected",
"version": "1.1.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiOS",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.4",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.11",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.12",
"status": "affected",
"version": "6.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"source": "psirt@fortinet.com"
}
],
"cisaActionDue": "2023-07-04",
"cisaExploitAdd": "2023-06-13",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E6BBF05F-4967-4A2E-A8F8-C2086097148B",
"versionEndIncluding": "1.1.6",
"versionStartIncluding": "1.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "33B84D9A-55E3-4146-A55A-ACB507E61B05",
"versionEndIncluding": "1.2.13",
"versionStartIncluding": "1.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7C1D5E6B-A23E-4A92-B53C-720AFEB1B951",
"versionEndIncluding": "2.0.12",
"versionStartIncluding": "2.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DAC18F7E-5242-4F36-BB42-FEC33B3AC075",
"versionEndIncluding": "7.0.9",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3A99FF48-370E-4D2A-B5CC-889EA21AB213",
"versionEndIncluding": "7.2.3",
"versionStartIncluding": "7.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8EA5512D-6EE5-4DF3-A960-C02394F25225",
"versionEndIncluding": "6.0.16",
"versionStartIncluding": "6.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3CD57A5A-2B13-495A-8530-8F97E1720602",
"versionEndIncluding": "6.2.13",
"versionStartIncluding": "6.2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5E99B6E5-7EC3-406C-AFAC-A5E32DE266DF",
"versionEndIncluding": "6.4.12",
"versionStartIncluding": "6.4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C2573C90-BE6A-4D5D-A223-F09213318909",
"versionEndIncluding": "7.0.11",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4AB643A8-B52F-4D54-B816-28A6401BAA25",
"versionEndIncluding": "7.2.4",
"versionStartIncluding": "7.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6D997493-24C2-4A78-9DF0-6438E9415A3C",
"versionEndIncluding": "6.0.16",
"versionStartIncluding": "6.0.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0A0D0D55-1A51-454D-A8B1-D7100D453102",
"versionEndIncluding": "6.2.13",
"versionStartIncluding": "6.2.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.0.10:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6AF1FA-A034-439A-876B-BFA1BE7DE15E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.4:*:*:*:*:*:*:*",
"matchCriteriaId": "9694FC0C-408A-4892-ADD1-F36F4BBBD9EF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.6:*:*:*:*:*:*:*",
"matchCriteriaId": "2B8A132F-601F-4129-BFCA-3A976A711D5A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.2.7:*:*:*:*:*:*:*",
"matchCriteriaId": "90600B14-07C4-455D-9FC1-17034D91B987",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.2:*:*:*:*:*:*:*",
"matchCriteriaId": "B28478DA-8D10-4A8E-81EA-D3DF421E5089",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.6:*:*:*:*:*:*:*",
"matchCriteriaId": "C2F935F9-5B6A-47C2-8F65-7A1E8BB061FF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.8:*:*:*:*:*:*:*",
"matchCriteriaId": "751D2FC7-482F-4C6B-95DB-244004A2738E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.10:*:*:*:*:*:*:*",
"matchCriteriaId": "EEE44B20-6F00-4962-9929-5A5054BBA94C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:6.4.12:*:*:*:*:*:*:*",
"matchCriteriaId": "EB2FF1DA-001B-4CA1-9F46-427D9C92CBC6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*",
"matchCriteriaId": "48D0E8CC-3815-4697-86D0-DC7F66E70520",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*",
"matchCriteriaId": "78C6C937-4477-438D-A252-E4102D758120",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:fortinet:fortigate_6000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "3BB410C9-CDD4-4068-97E0-6D83AE62B7F1",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:fortinet:fortigate_7000:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E0CBA773-10C1-410D-BB01-771F454ABEBA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests."
}
],
"id": "CVE-2023-27997",
"lastModified": "2026-07-31T04:16:43.707",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-27997",
"options": [
{
"exploitation": "active"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2023-06-12T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2023-06-13T09:15:16.613",
"references": [
{
"source": "psirt@fortinet.com",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997"
}
],
"sourceIdentifier": "psirt@fortinet.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-122"
}
],
"source": "psirt@fortinet.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T11:42:33+00:00",
"cve": "CVE-2023-27997",
"id": "CVE-2023-27997",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2023-27997",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-27997.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T12:23:30.864Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-23-097",
"tags": [
"x_transferred"
],
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-27997",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-23T13:18:08.089433Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-06-13",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-23T13:00:31.878Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-06-13T00:00:00.000Z",
"value": "CVE-2023-27997 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FortiOS-6K7K",
"vendor": "Fortinet",
"versions": [
{
"status": "affected",
"version": "7.0.10"
},
{
"status": "affected",
"version": "7.0.5"
},
{
"status": "affected",
"version": "6.4.12"
},
{
"status": "affected",
"version": "6.4.10"
},
{
"status": "affected",
"version": "6.4.8"
},
{
"status": "affected",
"version": "6.4.6"
},
{
"status": "affected",
"version": "6.4.2"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.7",
"status": "affected",
"version": "6.2.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.2.4"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.12",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.10"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiProxy",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.3",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.9",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "2.0.12",
"status": "affected",
"version": "2.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.2.13",
"status": "affected",
"version": "1.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "1.1.6",
"status": "affected",
"version": "1.1.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FortiOS",
"vendor": "Fortinet",
"versions": [
{
"lessThanOrEqual": "7.2.4",
"status": "affected",
"version": "7.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.11",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.12",
"status": "affected",
"version": "6.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.13",
"status": "affected",
"version": "6.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.16",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:R",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Execute unauthorized code or commands",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-06-13T08:41:47.415Z",
"orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"shortName": "fortinet"
},
"references": [
{
"name": "https://fortiguard.com/psirt/FG-IR-23-097",
"url": "https://fortiguard.com/psirt/FG-IR-23-097"
}
],
"solutions": [
{
"lang": "en",
"value": "Please upgrade to FortiOS-6K7K version 7.0.12 or above\r\nPlease upgrade to FortiOS-6K7K version 6.4.13 or above\r\nPlease upgrade to FortiOS-6K7K version 6.2.15 or above\r\nPlease upgrade to FortiOS-6K7K version 6.0.17 or above\r\nPlease upgrade to FortiProxy version 7.2.4 or above\r\nPlease upgrade to FortiProxy version 7.0.10 or above\r\nPlease upgrade to FortiOS version 7.4.0 or above\r\nPlease upgrade to FortiOS version 7.2.5 or above\r\nPlease upgrade to FortiOS version 7.0.12 or above\r\nPlease upgrade to FortiOS version 6.4.13 or above\r\nPlease upgrade to FortiOS version 6.2.14 or above\r\nPlease upgrade to FortiOS version 6.0.17 or above"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
"assignerShortName": "fortinet",
"cveId": "CVE-2023-27997",
"datePublished": "2023-06-13T08:41:47.415Z",
"dateReserved": "2023-03-09T10:09:33.119Z",
"dateUpdated": "2026-07-31T03:55:27.798Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Solutions
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.