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CVE-2006-5277
Off-by-one error in the Certificate Trust List (CTL) Provider service (CTLProvider.exe) in Cisco Unified Communications Manager (CUCM,…
- 9.3HighCVSS base score
- 9.6%Exploitation in 30 daysEPSS · top 4.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Off-by-one error in the Certificate Trust List (CTL) Provider service (CTLProvider.exe) in Cisco Unified Communications Manager (CUCM, formerly CallManager) before 20070711 allow remote attackers to execute arbitrary code via a crafted packet that triggers a heap-based buffer overflow.
Timeline
ID reserved
By mitre
- 9 months later
· 9 months later
Published
- 17 years later
· 17 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 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 9.6% · top 4.5% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
References8
- 36122 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 20070711 Cisco Unified Communications Manager Overflow Vulnerabilities (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- ADV-2007-2512 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20070711 Cisco Call Manager CTLProvider.exe Remote Code Execution (opens in a new tab)third-party-advisoryx_refsource_ISSx_transferred
- 26043 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24868 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- voip-filename-overflow(31437) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1018369 (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-2006-5262 (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-2006-5277)Record last updated .