SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-12378

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

MEDIUM 5.5EPSS 2.79%

Does this matter?

Lower severity and a low EPSS score (2.79%). Track it; it rarely justifies an emergency change on its own.

Description

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a checksum buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.

CVSS 3.0
5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
2.79% probability · 86th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-125
Affected
debian/debian linux · clamav/clamav
Source
psirt@cisco.com
EPSS trend
0%3%5%21 September 2026: 4.01%22 September 2026: 2.79%27 October 2026: 2.79%21 September 202627 October 2026

EPSS moved from 4.0% on 21 September 2026 to 2.8% on 27 October 2026.

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