HOMEVULNERABILITIESCVE-2021-41193
CRITICAL

CVE-2021-41193

CWE-134Published: March 1, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-41193 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

wire1 product(s)
wire-audio video signaling
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe
PATCHhttps://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv
PATCHhttps://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe
PATCHhttps://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv

All References (4)

→
https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbePatch · Third Party Advisory
→
https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrvPatch · Third Party Advisory
→
https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbePatch · Third Party Advisory
→
https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrvPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2021-41193
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-134
CISA KEVNo
Affected1 vendor(s)
PublishedMar 1, 2022

Related CVEs (CWE-134)

CVE-2011-0270
10.0
CVE-2012-1851
10.0
CVE-2008-6520
10.0
CVE-2006-1615
10.0
CVE-2009-2548
10.0
CVE-2008-3533
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-41193 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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