CVE-2006-5278

Integer overflow in the Real-Time Information Server (RIS) Data Collector service (RisDC.exe) in Cisco Unified Communications Manager (CUCM, formerly CallManager) before 20070711 allow remote attackers to execute arbitrary code via crafted packets, resulting in a heap-based buffer overflow.

Published: 2007-07-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-5278 is rated High Risk (71.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 8.88%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-5278

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 10.08% 8.88% -1.20%
2 2026-03-03 9.73% 10.08% +0.35%
3 2025-03-30 — 9.73% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-5278

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2006-5278

Affected software / configurations for CVE-2006-5278

Vendor Product Version Raw CPE
cisco unified_callmanager >= 3.3, <= 3.3\(5\)sr2 cpe:2.3:a:cisco:unified_callmanager:*:*:*:*:*:*:*:*
cisco unified_callmanager >= 4.1, <= 4.1\(3\)sr4 cpe:2.3:a:cisco:unified_callmanager:*:*:*:*:*:*:*:*
cisco unified_callmanager >= 4.2, <= 4.2\(3\)sr1 cpe:2.3:a:cisco:unified_callmanager:*:*:*:*:*:*:*:*
cisco unified_callmanager >= 5.1, <= 5.1\(2\) cpe:2.3:a:cisco:unified_callmanager:*:*:*:*:*:*:*:*
cisco unified_callmanager 5.0 cpe:2.3:a:cisco:unified_callmanager:5.0:*:*:*:*:*:*:*
cisco unified_communications_manager >= 4.3, <= 4.3\(1\) cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*

References for CVE-2006-5278

cvelogic Threat Intelligence