CVE-2006-5277
CVE-2006-5277 is a critical-severity vulnerability in Cisco Unified Callmanager with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 10% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Cisco Unified Callmanager
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2006-5277?
- 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.
- How severe is CVE-2006-5277?
- CVE-2006-5277 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2006-5277 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2006-5277?
- CVE-2006-5277 primarily affects Cisco Unified Callmanager. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2006-5277?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2006-5277 published?
- CVE-2006-5277 was published on 2007-07-15 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/26043
- http://securitytracker.com/id?1018369
- http://www.cisco.com/warp/public/707/cisco-sa-20070711-cucm.shtml
- http://www.iss.net/threats/270.html
- http://www.osvdb.org/36122
- http://www.securityfocus.com/bid/24868
- http://www.vupen.com/english/advisories/2007/2512
- https://exchange.xforce.ibmcloud.com/vulnerabilities/31437
Affected products (3)
- cpe:2.3:a:cisco:unified_callmanager:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:unified_callmanager:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
More vulnerabilities in Cisco Unified Callmanager
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- CVE-2006-5278 — Critical (CVSS 10.0): Integer overflow in the Real-Time Information Server (RIS) Data Collector service (RisDC.exe) in Cisco Unified…
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