CVE-2017-12377
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 or potentially execute arbitrary code on an affected device.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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 or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms in mew packet files sent to an affected device. A successful exploit could cause a heap-based buffer over-read condition in mew.c when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code on the affected device.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 11.58% probability · 96th 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 moved from 10.3% on 21 September 2026 to 11.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11943Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3550-1/
- https://usn.ubuntu.com/3550-2/
- http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11943Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3550-1/
- https://usn.ubuntu.com/3550-2/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.