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GHSA-P45R-GCC9-FR7F
Vulnerability from github – Published: 2026-06-15 18:31 – Updated: 2026-06-15 21:30
VLAI
Details
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.
This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20262"
],
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-15T18:16:34Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.\n\nThis vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account.",
"id": "GHSA-p45r-gcc9-fr7f",
"modified": "2026-06-15T21:30:37Z",
"published": "2026-06-15T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20262"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfw-c2rZvQ"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20262"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
CVE-2026-20262 (GCVE-0-2026-20262)
Vulnerability from cvelistv5 – Published: 2026-06-15 16:21 – Updated: 2026-06-16 13:12
VLAI
EPSS
Title
Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability
Summary
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.
This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account.
Severity
6.5 (Medium)
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/c… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager |
Affected:
20.1.12
Affected: 19.2.1 Affected: 18.4.4 Affected: 18.4.5 Affected: 20.1.1.1 Affected: 20.1.1 Affected: 19.3.0 Affected: 19.2.2 Affected: 19.2.099 Affected: 18.3.6 Affected: 18.3.7 Affected: 19.2.0 Affected: 18.3.8 Affected: 19.0.0 Affected: 19.1.0 Affected: 18.4.302 Affected: 18.4.303 Affected: 19.2.097 Affected: 19.2.098 Affected: 17.2.10 Affected: 18.3.6.1 Affected: 19.0.1a Affected: 18.2.0 Affected: 18.4.3 Affected: 18.4.1 Affected: 17.2.8 Affected: 18.3.3.1 Affected: 18.4.0 Affected: 18.3.1 Affected: 17.2.6 Affected: 17.2.9 Affected: 18.3.4 Affected: 17.2.5 Affected: 18.3.1.1 Affected: 18.3.5 Affected: 18.4.0.1 Affected: 18.3.3 Affected: 17.2.7 Affected: 17.2.4 Affected: 18.3.0 Affected: 19.2.3 Affected: 18.4.501_ES Affected: 20.3.1 Affected: 20.1.2 Affected: 19.2.929 Affected: 19.2.31 Affected: 20.3.2 Affected: 19.2.32 Affected: 20.3.2_925 Affected: 20.3.2.1 Affected: 20.3.2.1_927 Affected: 18.4.6 Affected: 20.1.2_937 Affected: 20.4.1 Affected: 20.3.2_928 Affected: 20.3.2_929 Affected: 20.4.1.0.1 Affected: 20.3.2.1_930 Affected: 19.2.4 Affected: 20.5.0.1.1 Affected: 20.4.1.1 Affected: 20.3.3 Affected: 19.2.4.0.1 Affected: 20.3.2_937 Affected: 20.3.3.1 Affected: 20.5.1 Affected: 20.1.3 Affected: 20.3.3.0.4 Affected: 20.3.3.1.2 Affected: 20.3.3.1.1 Affected: 20.4.1.2 Affected: 20.3.3.0.2 Affected: 20.4.1.1.5 Affected: 20.4.1.0.01 Affected: 20.4.1.0.02 Affected: 20.3.3.1.7 Affected: 20.3.3.1.5 Affected: 20.5.1.0.1 Affected: 20.3.3.1.10 Affected: 20.3.3.0.8 Affected: 20.4.2 Affected: 20.4.2.0.1 Affected: 20.3.4 Affected: 20.3.3.0.14 Affected: 19.2.4.0.8 Affected: 19.2.4.0.9 Affected: 20.3.4.0.1 Affected: 20.3.2.0.5 Affected: 20.6.1 Affected: 20.5.1.0.2 Affected: 20.3.3.0.17 Affected: 20.6.1.1 Affected: 20.6.0.18.3 Affected: 20.3.2.0.6 Affected: 20.6.0.18.4 Affected: 20.4.2.0.2 Affected: 20.3.3.0.16 Affected: 20.3.4.0.5 Affected: 20.6.1.0.1 Affected: 20.3.4.0.6 Affected: 20.6.2 Affected: 20.7.1EFT2 Affected: 20.3.4.0.9 Affected: 20.3.4.0.11 Affected: 20.4.2.0.4 Affected: 20.3.3.0.18 Affected: 20.7.1 Affected: 20.6.2.1 Affected: 20.3.4.1 Affected: 20.5.1.1 Affected: 20.4.2.1 Affected: 20.4.2.1.1 Affected: 20.3.4.1.1 Affected: 20.3.813 Affected: 20.3.4.0.19 Affected: 20.4.2.2.1 Affected: 20.5.1.2 Affected: 20.3.4.2 Affected: 20.3.814 Affected: 20.4.2.2 Affected: 20.6.2.2 Affected: 20.3.4.2.1 Affected: 20.7.1.1 Affected: 20.3.4.1.2 Affected: 20.6.2.2.2 Affected: 20.3.4.0.20 Affected: 20.6.2.2.3 Affected: 20.4.2.2.2 Affected: 20.3.5 Affected: 20.6.2.0.4 Affected: 20.4.2.2.3 Affected: 20.3.4.0.24 Affected: 20.6.2.2.7 Affected: 20.6.3 Affected: 20.3.4.2.2 Affected: 20.4.2.2.4 Affected: 20.7.1.0.2 Affected: 20.8.1 Affected: 20.3.5.0.8 Affected: 20.3.5.0.9 Affected: 20.4.2.2.8 Affected: 20.3.5.0.7 Affected: 20.6.3.0.7 Affected: 20.6.3.0.5 Affected: 20.6.3.0.10 Affected: 20.6.3.0.2 Affected: 20.7.2 Affected: 20.9.1EFT2 Affected: 20.6.3.0.11 Affected: 20.6.3.1 Affected: 20.6.3.0.14 Affected: 20.6.4 Affected: 20.9.1 Affected: 20.6.3.0.19 Affected: 20.6.3.0.18 Affected: 20.3.6 Affected: 20.9.1.1 Affected: 20.6.3.0.23 Affected: 20.6.4.0.4 Affected: 20.6.3.0.25 Affected: 20.6.5 Affected: 20.6.3.0.27 Affected: 20.9.2 Affected: 20.9.2.1 Affected: 20.6.3.0.29 Affected: 20.6.3.0.31 Affected: 20.6.3.0.32 Affected: 20.10.1 Affected: 20.6.3.0.33 Affected: 20.9.2.0.01 Affected: 20.9.1_LI_Images Affected: 20.10.1_LI_Images Affected: 20.9.2_LI_Images Affected: 20.3.7 Affected: 20.9.3 Affected: 20.6.5.1 Affected: 20.11.1 Affected: 20.11.1_LI_Images Affected: 20.9.3_LI_ Images Affected: 20.6.3.1.1 Affected: 20.9.3.0.2 Affected: 20.6.5.1.2 Affected: 20.9.3.0.3 Affected: 20.4.2.3 Affected: 20.6.3.2 Affected: 20.6.4.1 Affected: 20.6.3.0.38 Affected: 20.6.3.0.39 Affected: 20.3.5.1 Affected: 20.3.4.3 Affected: 20.9.3.1 Affected: 20.3.3.2 Affected: 20.6.5.2 Affected: 20.3.7.1 Affected: 20.10.1.1 Affected: 20.6.5.2.1 Affected: 20.3.4.0.25 Affected: 20.6.2.2.4 Affected: 20.6.1.2 Affected: 20.11.1.1 Affected: 20.9.3.0.5 Affected: 20.3.4.0.26 Affected: 20.6.5.1.3 Affected: 20.6.3.0.40 Affected: 20.1.3.1 Affected: 20.9.2.2 Affected: 20.6.5.2.3 Affected: 20.6.5.1.4 Affected: 20.6.5.3 Affected: 20.6.3.0.41 Affected: 20.9.3.0.7 Affected: 20.6.5.1.5 Affected: 20.9.3.0.4 Affected: 20.6.4.0.19 Affected: 20.6.5.1.6 Affected: 20.9.3.0.8 Affected: 20.6.3.3 Affected: 20.3.7.2 Affected: 20.6.5.4 Affected: 20.6.5.1.7 Affected: 20.9.3.0.12 Affected: 20.6.4.2 Affected: 20.6.5.5 Affected: 20.9.3.2 Affected: 20.11.1.2 Affected: 20.6.3.4 Affected: 20.10.1.2 Affected: 20.6.5.1.9 Affected: 20.9.3.0.16 Affected: 20.6.3.0.45 Affected: 20.6.5.1.10 Affected: 20.9.3.0.17 Affected: 20.6.5.2.4 Affected: 20.6.4.0.21 Affected: 20.9.3.0.18 Affected: 20.6.3.0.46 Affected: 20.6.3.0.47 Affected: 20.9.2.3 Affected: 20.9.3.2_LI_Images Affected: 20.9.3.0.21 Affected: 20.9.3.0.20 Affected: 20.9.4_LI_Images Affected: 20.9.4 Affected: 20.6.5.1.11 Affected: 20.12.1 Affected: 20.12.1_LI_Images Affected: 20.6.5.1.13 Affected: 20.9.3.0.23 Affected: 20.6.5.2.8 Affected: 20.9.4.1 Affected: 20.9.4.1_LI_Images Affected: 20.9.3.0.25 Affected: 20.9.3.0.24 Affected: 20.6.5.1.14 Affected: 20.3.8 Affected: 20.6.6 Affected: 20.9.3.0.26 Affected: 20.6.3.0.51 Affected: 20.9.3.0.29 Affected: 20.12.2 Affected: 20.12.2_LI_Images Affected: 20.6.6.0.1 Affected: 20.13.1_LI_Images Affected: 20.9.4.0.4 Affected: 20.13.1 Affected: 20.9.4.1.1 Affected: 20.9.5 Affected: 20.9.5_LI_Images Affected: 20.12.3_LI_Images Affected: 20.12.3 Affected: 20.9.4.1.3 Affected: 20.6.7 Affected: 20.9.5.1 Affected: 20.9.5.1_LI_Images Affected: 20.9.4.1.6 Affected: 20.14.1 Affected: 20.14.1_LI_Images Affected: 20.9.5.2 Affected: 20.9.5.2.1 Affected: 20.9.5.2_LI_Images Affected: 20.12.3.1 Affected: 20.12.4 Affected: 20.15.1_LI_Images Affected: 20.15.1 Affected: 20.9.5.1.4 Affected: 20.9.5.2.7 Affected: 20.9.5.2.13 Affected: 20.9.6 Affected: 20.9.6_LI_Images Affected: 20.9.5.2.14 Affected: 20.6.8 Affected: 20.12.4.0.03 Affected: 20.16.1 Affected: 20.16.1_LI_Images Affected: 20.12.4_LI_Images Affected: 20.9.5.2.16 Affected: 20.12.4.0.4 Affected: 20.12.401 Affected: 20.9.5.3 Affected: 20.9.5.3_LI_Images Affected: 20.12.4.1_LI_Images Affected: 20.12.4.1 Affected: 20.9.5.2.21 Affected: 20.9.6.0.3 Affected: 20.12.4.0.6 Affected: 20.15.2_LI_Images Affected: 20.15.2 Affected: 20.12.4_Monthly_ES5 Affected: 20.12.5 Affected: 20.12.5_LI_Images Affected: 20.9.7_LI _Images Affected: 20.9.7 Affected: 20.15.3 Affected: 20.15.3_ LI _Images Affected: 20.12.501 Affected: 20.12.5.1_LI_Images Affected: 20.12.5.1 Affected: 20.12.5.2_LI_Images Affected: 20.12.5.2 Affected: 20.15.3.1 Affected: 20.15.4_LI_Images Affected: 20.15.4 Affected: 20.9.7.1_LI _Images Affected: 20.9.7.1 Affected: 20.18.1 Affected: 20.18.1_LI_Images Affected: 20.12.6_LI_Images Affected: 20.12.6 Affected: 20.12.5.1.01 Affected: 26.0.1 Affected: 20.9.8 Affected: 20.9.8_LI_Images Affected: 20.18.2 Affected: 20.15.4.1_LI_Images Affected: 20.15.4.1 Affected: 20.18.2_LI_Images Affected: 26.1.1 Affected: 26.1.1_LI_Images Affected: 20.18.2.1_LI_Images Affected: 20.18.2.1 Affected: 20.15.4.2_LI_Images Affected: 20.15.4.2 Affected: 20.12.6.1 Affected: 20.12.6.1_LI_Images Affected: 20.12.5.3 Affected: 20.12.5.3_LI_Images Affected: 20.9.8.2_LI_Images Affected: 20.9.8.2 Affected: 20.18.3 Affected: 20.18.3_LI_Images Affected: 20.15.5 Affected: 20.15.5_LI_Images Affected: 20.12.7 Affected: 20.12.7_LI_Images Affected: 20.9.9 Affected: 20.9.9_LI_Images Affected: 20.18.2.2 Affected: 20.18.2.2_LI_Images Affected: 20.12.5.4 Affected: 20.12.5.4_LI_ Images Affected: 20.12.7.1_LI_Images Affected: 20.12.6.2_LI_Images Affected: 20.12.7.1 Affected: 20.15.5.1 Affected: 20.15.4.3 Affected: 20.15.4.3_LI_Images Affected: 20.15.5.1_LI_Images Affected: 20.12.6.2 Affected: 20.15.5.2 Affected: 20.15.5.2_LI_Images Affected: 26.1.1.1_LI_Images Affected: 20.15.4.4 Affected: 20.15.4.4_LI_Images Affected: 26.1.1.1 Affected: 20.9.9.1_LI_Images Affected: 20.9.9.1 |
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{
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},
{
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}
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"timestamp": "2026-06-16T13:11:29.486372Z",
"version": "2.0.3"
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"type": "ssvc"
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{
"other": {
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"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20262"
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}
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"title": "CISA ADP Vulnrichment"
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{
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{
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"status": "affected",
"version": "20.15.5.2"
},
{
"status": "affected",
"version": "20.15.5.2_LI_Images"
},
{
"status": "affected",
"version": "26.1.1.1_LI_Images"
},
{
"status": "affected",
"version": "20.15.4.4"
},
{
"status": "affected",
"version": "20.15.4.4_LI_Images"
},
{
"status": "affected",
"version": "26.1.1.1"
},
{
"status": "affected",
"version": "20.9.9.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.9.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.\r\n\r\nThis vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account."
}
],
"exploits": [
{
"lang": "en",
"value": "In June 2026, the Cisco PSIRT became aware of limited exploitation of this vulnerability. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-15T16:21:09.696Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-sdwan-arbfw-c2rZvQ",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfw-c2rZvQ"
}
],
"source": {
"advisory": "cisco-sa-sdwan-arbfw-c2rZvQ",
"defects": [
"CSCwu18441"
],
"discovery": "INTERNAL"
},
"title": "Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20262",
"datePublished": "2026-06-15T16:21:09.696Z",
"dateReserved": "2025-10-08T11:59:15.402Z",
"dateUpdated": "2026-06-16T13:12:19.506Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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