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Vulnerability record · CVE-2006-5277 · published 15 July 2007

CVE-2006-5277: Cisco unified callmanager vulnerability

Cisco · Unified Callmanager

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.

9.3 CVSS 2.0 High EPSS 9.6% · top 4.7%
9.3CVSS 2.0 base score
9.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/26043 Third Party Advisory
http://securitytracker.com/id?1018369 Third Party AdvisoryVDB Entry
http://www.cisco.com/warp/public/707/cisco-sa-20070711-cucm.shtml Vendor Advisory
http://www.iss.net/threats/270.html Broken Link
http://www.osvdb.org/36122 Broken Link
http://www.securityfocus.com/bid/24868 Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2007/2512 Permissions RequiredThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/31437 Third Party AdvisoryVDB Entry
http://secunia.com/advisories/26043 Third Party Advisory
http://securitytracker.com/id?1018369 Third Party AdvisoryVDB Entry
http://www.cisco.com/warp/public/707/cisco-sa-20070711-cucm.shtml Vendor Advisory
http://www.iss.net/threats/270.html Broken Link
http://www.osvdb.org/36122 Broken Link
http://www.securityfocus.com/bid/24868 Third Party AdvisoryVDB Entry
http://www.vupen.com/english/advisories/2007/2512 Permissions RequiredThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/31437 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2006-5277), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.