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CVE-2010-1311

18
FAUCET Score

CVE-2010-1311 describes a denial-of-service vulnerability in ClamAV versions prior to 0.96, specifically within the qtm_decompress function in libclamav/mspack.c. An unauthenticated remote attacker can exploit this by providing a specially crafted CAB archive utilizing the Quantum compression format, leading to memory corruption and an application crash. With a CVSS score of 5.0, this vulnerability has a low attack complexity and no authentication required, but only results in a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.96CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:*:rc2:*:*:*:*:*:*
0.01CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.01:*:*:*:*:*:*:*
0.02CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.02:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.3:*:*:*:*:*:*:*
0.03CPE matchmatch criteria
cpe:2.3:a:clamav:clamav:0.03:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.35%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0335 is in the 83rd percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2010-1311Moderate

v0.96): Memory corruption by scanning Quantum-compressed file(s)

Dec 7, 2009

References

git.clamav.net / gitweb
lists.apple.com / archives/security-announce/2010//Aug/msg00003.html
lists.opensuse.org / opensuse-security-announce/2010-04/msg00006.html
secunia.com / advisories/39293
secunia.com / advisories/39329
Vendor Advisory
secunia.com / advisories/39656
support.apple.com / kb/HT4312
wwws.clamav.net / bugzilla/show_bug.cgi
mandriva.com / security/advisories
securityfocus.com / bid/39262
Patch
ubuntu.com / usn/USN-926-1
vupen.com / english/advisories/2010/0827
vupen.com / english/advisories/2010/0832
vupen.com / english/advisories/2010/0909
vupen.com / english/advisories/2010/1001
vupen.com / english/advisories/2010/1206