CVE-2020-37167

HIGH
2026-02-12 [email protected]
8.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
PoC Detected
Feb 27, 2026 - 22:16 vuln.today
Public exploit code
CVE Published
Feb 12, 2026 - 23:16 nvd
HIGH 8.4

Description

ClamAV versions prior to 0.103.0-rc contain a vulnerability in function name processing through the ClamBC bytecode interpreter that allows attackers to manipulate bytecode function names. Attackers can exploit the weak input validation in function name encoding to potentially execute malicious bytecode or cause unexpected behavior in the ClamAV engine.

Analysis

ClamAV versions up to 0.103.0 contains a vulnerability that allows attackers to manipulate bytecode function names (CVSS 8.4).

Technical Context

exists in the a vulnerability in component. ClamAV versions prior to 0.103.0-rc contain a vulnerability in function name processing through the ClamBC bytecode interpreter that allows attackers to manipulate bytecode function names. Attackers can exploit the weak input validation in function name encoding to potentially execute malicious bytecode or cause unexpected behavior in the ClamAV engine.

Affected Products

Product: ClamAV. Versions: up to 0.103.0. Component: a vulnerability in.

Remediation

Monitor vendor advisories for a patch.

Priority Score

62
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +42
POC: +20

Vendor Status

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CVE-2020-37167 vulnerability details – vuln.today

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