CVE-2020-37167
Bytecode Function Name Manipulation in ClamAV ClamBC Interpreter
Publication date: 2026-02-12
Last updated on: 2026-02-27
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| clamav | clamav | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the ClamAV ClamBC bytecode interpreter, specifically in the function name processing. It allows attackers to manipulate bytecode function names due to weak input validation in function name encoding. As a result, attackers can potentially execute malicious bytecode or cause unexpected behavior within the ClamAV engine.
How can this vulnerability impact me? :
The vulnerability can lead to the execution of malicious bytecode or cause unexpected behavior in the ClamAV engine. This could compromise the security of systems using ClamAV by allowing attackers to bypass protections, execute unauthorized code, or disrupt normal antivirus operations.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know