How severe is CVE-2008-6903?

CVE-2008-6903 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-6903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-6903?

CVE-2008-6903 primarily affects Sophos Anti-virus. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-6903?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2008-6903 published?

CVE-2008-6903 was published on 2009-08-06 and last updated on 2026-06-16.

CVE-2008-6903

CVE-2008-6903 is a medium-severity vulnerability in Sophos Anti-virus with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Sophos Anti-virus
Published: 2009-08-06
Last modified: 2026-06-16

Description

Sophos Anti-Virus for Windows before 7.6.3, Anti-Virus for Windows NT/9x before 4.7.18, Anti-Virus for OS X before 4.9.18, Anti-Virus for Linux before 6.4.5, Anti-Virus for UNIX before 7.0.5, Anti-Virus for Unix and Netware before 4.37.0, Sophos EM Library, and Sophos small business solutions, when CAB archive scanning is enabled, allows remote attackers to cause a denial of service (segmentation fault) via a "fuzzed" CAB archive file, as demonstrated by the OUSPG PROTOS GENOME test suite for Archive Formats.

Frequently asked questions

What is CVE-2008-6903?: Sophos Anti-Virus for Windows before 7.6.3, Anti-Virus for Windows NT/9x before 4.7.18, Anti-Virus for OS X before 4.9.18, Anti-Virus for Linux before 6.4.5, Anti-Virus for UNIX before 7.0.5, Anti-Virus for Unix and Netware before 4.37.0, Sophos EM Library, and Sophos small business solutions, when CAB archive scanning is enabled, allows remote attackers to cause a denial of service (segmentation fault) via a "fuzzed" CAB archive file, as demonstrated by the OUSPG PROTOS GENOME test suite for Archive Formats.
How severe is CVE-2008-6903?: CVE-2008-6903 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-6903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-6903?: CVE-2008-6903 primarily affects Sophos Anti-virus. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-6903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-6903 published?: CVE-2008-6903 was published on 2009-08-06 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:sophos:anti-virus:4.7.18:*:windows-nt:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus:4.7.18:*:windows_9x:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus:4.9.18:*:os_x:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus:4.37.0:*:netware:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus:6.4.5:*:linux:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus:7.0.5:*:unix:*:*:*:*:*
cpe:2.3:a:sophos:anti-virus7.6.3:*:windows:*:*:*:*:*:*

More vulnerabilities in Sophos Anti-virus

CVE-2008-6904 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Sophos SAVScan 4.33.0 for Linux, and possibly other products and versions,…
CVE-2008-5541 — Critical (CVSS 9.3): Sophos Anti-Virus 4.33.0, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware…
CVE-2007-4577 — High (CVSS 7.8): Sophos Anti-Virus for Unix/Linux before 2.48.0 allows remote attackers to cause a denial of service (infinite loop) via…
CVE-2010-2308 — High (CVSS 7.2): Unspecified vulnerability in the filter driver (savonaccessfilter.sys) in Sophos Anti-Virus before 7.6.20 allows local…
CVE-2008-1737 — Medium (CVSS 6.9): Sophos Anti-Virus 7.0.5, and other 7.x versions, when Runtime Behavioural Analysis is enabled, allows local users to…
CVE-2007-4578 — Medium (CVSS 6.8): Sophos Anti-Virus for Windows and for Unix/Linux before 2.48.0 allows remote attackers to cause a denial of service…

All CVEs affecting Sophos Anti-virus →

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →