VulnerabilityModified

CVE-2005-2920

Buffer overflow in libclamav/upx.c in Clam AntiVirus (ClamAV) before 0.87 allows remote attackers to execute arbitrary code via a crafted UPX packed executable.

HIGH 7.5EPSS 8.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (8.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Buffer overflow in libclamav/upx.c in Clam AntiVirus (ClamAV) before 0.87 allows remote attackers to execute arbitrary code via a crafted UPX packed executable.

CVSS 2.0: 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS: 8.23% probability · 95th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Affected: clam anti-virus/clamav
Source: cve@mitre.org

EPSS trend

EPSS 8.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.