# CVE-2021-41193

## Summary

- **CVE ID:** CVE-2021-41193
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-134
- **Published:** Mar 1, 2022
- **Last Modified:** Mar 13, 2026

## Description

wire-avs is the audio visual signaling (AVS) component of Wire, an open-source messenger. A remote format string vulnerability in versions prior to 7.1.12 allows an attacker to cause a denial of service or possibly execute arbitrary code. The issue has been fixed in wire-avs 7.1.12. There are currently no known workarounds.

## Affected Products

- wireapp — wire-avs (< 7.1.12)

## References

- [CNA](https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv)
- [CNA](https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.14%
- **EPSS Percentile:** 78.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._