CVE-2023-27997 (GCVE-0-2023-27997)

Vulnerability from cvelistv5 – Published: 2023-06-13 08:41 – Updated: 2025-10-21 23:05
VLAI? CISA ENISA
Summary
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.
Severity ?
9.2 (Critical)
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
CWE
  • CWE-122 - Execute unauthorized code or commands
Assigner
References
Impacted products
Vendor Product Version
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
Create a notification for this product.
    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)
Create a notification for this product.
    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)
Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2023-06-13

Due date: 2023-07-04

Required action: Apply updates per vendor instructions.

Used in ransomware: Known

Notes: https://www.fortiguard.com/psirt/FG-IR-23-097; https://nvd.nist.gov/vuln/detail/CVE-2023-27997

ENISA Known Exploited Vulnerability
Data from the ENISA CNW Known Exploited Vulnerabilities Catalog
Vendor/Product: Fortinet | Product: FortiOS and FortiProxy

CVE: CVE-2023-27997

EUVD: EUVD-2023-31722

Date reported: 23/01/25

Exploitation type: ransomware

Show details on NVD website
To clipboard 

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    "vulnrichment": {
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\"https://fortiguard.com/psirt/FG-IR-23-097\"}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-122\", \"description\": \"Execute unauthorized code or commands\"}]}], \"providerMetadata\": {\"orgId\": \"6abe59d8-c742-4dff-8ce8-9b0ca1073da8\", \"shortName\": \"fortinet\", \"dateUpdated\": \"2023-06-13T08:41:47.415Z\"}}}",
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.