CVE-2021-41193
Use of Externally-Controlled Format String in wire-avs
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Use of Externally-Controlled Format String in wire-avs
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.
- Record
CVE-2021-41193- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
EUVDEUVD-2022-1271
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.
- Record
EUVD-2022-1271- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2j6v-xpf3-xvrv
Use of Externally-Controlled Format String in wire-avs
Impact
A remote format string vulnerability allowed an attacker to cause a denial of service or possibly execute arbitrary code.
Patches
- The issue has been fixed in wire-avs 7.1.12 and is already included on all Wire products (currently used version is 8.0.x)
Workarounds
- No workaround known
References
For more information
If you have any questions or comments about this advisory feel free to email us at [email protected]
- Record
GHSA-2j6v-xpf3-xvrv- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-41193- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-134
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-41193- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-2j6v-xpf3-xvrv
Use of Externally-Controlled Format String in wire-avs
Impact
A remote format string vulnerability allowed an attacker to cause a denial of service or possibly execute arbitrary code.
Patches
- The issue has been fixed in wire-avs 7.1.12 and is already included on all Wire products (currently used version is 8.0.x)
Workarounds
- No workaround known
References
For more information
If you have any questions or comments about this advisory feel free to email us at [email protected]
- Record
GHSA-2j6v-xpf3-xvrv- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-134
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.wire:avsMaven |
before 7.1.12 | 7.1.12 |
com.wire:avsMaven |
before 7.1.12, plus listed versions 0.0.280.0.290.0.480.0.490.0.50 Show 6 moreShow less0.0.520.0.590.0.600.0.610.0.620.0.76 |
7.1.12 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-41193 is a critical vulnerability (CVSS 9.8) in Wireapp Wire-avs, published March 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.47%, the 84th percentile. Fixed in com.wire:avs 7.1.12.