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CVE-2017-12377

CRITICAL

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.

Published: Jan 26, 2018 Modified: Jun 17, 2026
CWE-125

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (2)

Vendor Product Version
debian debian_linux 7.0
clamav clamav *

GitHub Security Advisory GHSA-7jpj-m78q-vr62

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 11.58%

Top 4% most likely to be exploited

Threat Score 42.7 / 100

Data Sources

NVD EPSS GitHub