CVE-2006-5647

Exp

Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11 allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a malformed CHM file with a large name length in the CHM chunk header, aka "CHM name length memory consumption vulnerability."

Published: 2006-11-01 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-5647 is rated High Exploit Risk (70.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 24.98%, 96th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2006-5647

EDB-ID Source Kind Published Link
2911 exploit_db edb 2006-12-10 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-5647

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 2026-06-04 28.48% 24.98% -3.50%
2 2026-05-22 17.28% 28.48% +11.20%
3 2026-05-16 — 17.28% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-5647

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P 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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2006-5647

OS Trackers for CVE-2006-5647

vendor priority summary link
alpine — CVE-2006-5647: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-5647

Affected software / configurations for CVE-2006-5647

Vendor Product Version Raw CPE
sophos anti-virus 4.04 cpe:2.3:a:sophos:anti-virus:4.04:*:*:*:*:*:*:*
sophos anti-virus 4.05 cpe:2.3:a:sophos:anti-virus:4.05:*:*:*:*:*:*:*
sophos anti-virus 4.5.3 cpe:2.3:a:sophos:anti-virus:4.5.3:*:*:*:*:*:*:*
sophos anti-virus 4.5.4 cpe:2.3:a:sophos:anti-virus:4.5.4:*:*:*:*:*:*:*
sophos anti-virus 4.5.11 cpe:2.3:a:sophos:anti-virus:4.5.11:*:*:*:*:*:*:*
sophos anti-virus 4.5.12 cpe:2.3:a:sophos:anti-virus:4.5.12:*:*:*:*:*:*:*
sophos anti-virus 4.7.1 cpe:2.3:a:sophos:anti-virus:4.7.1:*:*:*:*:*:*:*
sophos anti-virus 4.7.2 cpe:2.3:a:sophos:anti-virus:4.7.2:*:*:*:*:*:*:*
sophos anti-virus 5.0.1 cpe:2.3:a:sophos:anti-virus:5.0.1:*:*:*:*:*:*:*
sophos anti-virus 5.0.2 cpe:2.3:a:sophos:anti-virus:5.0.2:*:*:*:*:*:*:*
sophos anti-virus 5.0.4 cpe:2.3:a:sophos:anti-virus:5.0.4:*:*:*:*:*:*:*
sophos anti-virus 5.1 cpe:2.3:a:sophos:anti-virus:5.1:*:*:*:*:*:*:*
sophos anti-virus 5.2 cpe:2.3:a:sophos:anti-virus:5.2:*:*:*:*:*:*:*
sophos anti-virus 5.2.1 cpe:2.3:a:sophos:anti-virus:5.2.1:*:*:*:*:*:*:*
sophos anti-virus 6.0.4 cpe:2.3:a:sophos:anti-virus:6.0.4:*:*:*:*:*:*:*
sophos endpoint_security <= 6.04 cpe:2.3:a:sophos:endpoint_security:*:*:*:*:*:*:*:*

References for CVE-2006-5647

cvelogic Threat Intelligence