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TI-2021-18032 Aliases CVE-2021-41193GHSA-2j6v-xpf3-xvrv

Use of Externally-Controlled Format String in wire-avs

Priority MEDIUM 54CWE-134Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-134 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02466 84th percentileScored 2026-11-07
Fix Fixed wire-avs (wireapp): 7.1.12com.wire:avs (Maven): 7.1.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wireappwire-avsbefore 7.1.127.1.12Patch availableCNA
—com.wire:avs (Maven)before 7.1.127.1.12Patch availableGHSA-2j6v-xpf3-xvrv
  • wire-avs Vendorwireapp Affected before 7.1.12 Fixed in 7.1.12 Patch available CNA
  • com.wire:avs (Maven) Vendor— Affected before 7.1.12 Fixed in 7.1.12 Patch available GHSA-2j6v-xpf3-xvrv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wire:wire-audio_video_signaling:*:*:*:*:*:*:*:*before 7.1.12Vulnerablewireapp
  • cpe:2.3:a:wire:wire-audio_video_signaling:*:*:*:*:*:*:*:* Versions before 7.1.12 Vulnerable ·wireapp

Remediation

  • Fix · CNA wire-avs (wireapp) Fixed in 7.1.12
  • Fix · GHSA-2j6v-xpf3-xvrv com.wire:avs (Maven) Fixed in 7.1.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41193
  2. 2026-10-03 Alias added: GHSA-2j6v-xpf3-xvrv

References

Patch 2

Advisory 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences