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CVE-2005-2920

22
FAUCET Score

CVE-2005-2920 describes a buffer overflow vulnerability in Clam AntiVirus (ClamAV) versions prior to 0.87, specifically within the libclamav/upx.c component. This flaw allows remote attackers to execute arbitrary code by supplying a specially crafted UPX-packed executable. With a CVSS score of 7.5, this vulnerability is considered high severity, requiring no authentication and having low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. Despite its age and 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
0.70CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.70:*:*:*:*:*:*:*
0.71CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.71:*:*:*:*:*:*:*
0.72CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.72:*:*:*:*:*:*:*
0.73CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.73:*:*:*:*:*:*:*
0.74CPE matchmatch criteria
cpe:2.3:a:clam_anti-virus:clamav:0.74:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.23%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0823 is in the 91st percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

secunia.com / advisories/16848
secunia.com / advisories/16989
exchange.xforce.ibmcloud.com / vulnerabilities/22307
sourceforge.net / project/shownotes.php
Patch
debian.org / security/2005/dsa-824
gentoo.org / security/en/glsa/glsa-200509-13.xml
PatchVendor Advisory
kb.cert.org / vuls/id/363713
US Government Resource
novell.com / linux/security/advisories/2005_55_clamav.html
osvdb.org / 19506
securityfocus.com / bid/14866
vupen.com / english/advisories/2005/1774