CVE-2012-5424
Cisco Secure Access Control System (ACS) 5.x before 5.2 Patch 11 and 5.3 before 5.3 Patch 7, when a certain configuration involving…
- 5.0MediumCVSS base score
- 2.5%Exploitation in 30 daysEPSS · top 15% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Cisco Secure Access Control System (ACS) 5.x before 5.2 Patch 11 and 5.3 before 5.3 Patch 7, when a certain configuration involving TACACS+ and LDAP is used, does not properly validate passwords, which allows remote attackers to bypass authentication by sending a valid username and a crafted password string, aka Bug ID CSCuc65634.
Timeline
ID reserved
By cisco
- 21 days later
· 21 days later
Published
- 12 years later
· 12 years 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 |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
6
- 20121107 Cisco Secure Access Control System TACACS+ Authentication Bypass Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 87251 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- cisco-acs-sec-bypass(79860) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 56433 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 51194 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1027733 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
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-2012-5343 (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-2012-5424)Record last updated .