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CVE-2008-1100

31
FAUCET Score

CVE-2008-1100 describes a critical buffer overflow vulnerability in the cli_scanpe function of libclamav, affecting ClamAV versions 0.92 and 0.92.1. This flaw allows remote attackers to execute arbitrary code by supplying a specially crafted Upack PE file. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication or complex attack vectors, and can lead to complete compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.92CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.92:*:*:*:*:*:*:*
0.92.1CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.92.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
10.86%
Probability of exploitation in next 30 days
EPSS Percentile
95.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1086 is in the 93rd percentile among its peer group of 51,553 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2008-1100Important

clamav: Upack Processing Buffer Overflow Vulnerability

Apr 14, 2008

References

kolab.org / security/kolab-vendor-notice-20.txt
lists.apple.com / archives/security-announce//2008/Sep/msg00005.html
lists.opensuse.org / opensuse-security-announce/2008-04/msg00009.html
lists.opensuse.org / opensuse-updates/2015-05/msg00024.html
secunia.com / advisories/29000
Vendor Advisory
secunia.com / advisories/29863
secunia.com / advisories/29886
secunia.com / advisories/29891
secunia.com / advisories/29975
secunia.com / advisories/30253
secunia.com / advisories/30328
secunia.com / advisories/31882
secunia.com / secunia_research/2008-11/advisory
Vendor Advisory
security.gentoo.org / glsa/glsa-200805-19.xml
exchange.xforce.ibmcloud.com / vulnerabilities/41789
redhat.com / archives/fedora-package-announce/2008-April/msg00576.html
redhat.com / archives/fedora-package-announce/2008-April/msg00625.html
redhat.com / archives/fedora-package-announce/2008-May/msg00249.html
wwws.clamav.net / bugzilla/show_bug.cgi
debian.org / security/2008/dsa-1549
kb.cert.org / vuls/id/858595
US Government Resource
mandriva.com / security/advisories
securityfocus.com / bid/28756
securityfocus.com / bid/28784
securitytracker.com / id
us-cert.gov / cas/techalerts/TA08-260A.html
US Government Resource
vupen.com / english/advisories/2008/1218/references
vupen.com / english/advisories/2008/2584