- 5.3MediumCVSS base score
- 0.30%Exploitation in 30 daysEPSS · top 77% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements. This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted through the device.
Timeline
ID reserved
By cisco
- 6 months later
· 6 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.30% · top 77% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Affected products
Cisco · Cisco Secure Web Appliance
- affected 11.8.0-453
- affected 12.5.3-002
- affected 12.0.3-007
- affected 12.0.3-005
- affected 14.1.0-032
- affected 14.1.0-047
- affected 14.1.0-041
- affected 12.0.4-002
- affected 14.0.2-012
- affected 11.8.0-414
- affected 12.0.1-268
- affected 11.8.1-023
- affected 11.8.3-021
- affected 11.8.3-018
- affected 12.5.1-011
- affected 11.8.4-004
- affected 12.5.2-007
- affected 12.5.2-011
- affected 14.5.0-498
- affected 12.5.4-005
- affected 12.5.4-011
- affected 12.0.5-011
- affected 14.0.3-014
- affected 12.5.5-004
- affected 12.5.5-005
- affected 12.5.5-008
- affected 14.0.4-005
- affected 14.5.1-008
- affected 14.5.1-016
- affected 15.0.0-355
- affected 15.0.0-322
- affected 12.5.6-008
- affected 15.1.0-287
- affected 14.5.2-011
- affected 15.2.0-116
- affected 14.0.5-007
- affected 15.2.0-164
- affected 14.5.1-510
- affected 12.0.2-012
- affected 12.0.2-004
- and 19 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-22964 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-20152)Record last updated .