{"id":"CVE-2021-41193","aliases":["GHSA-2j6v-xpf3-xvrv"],"url":"https://o3.security/vulnerability/CVE-2021-41193","summary":"Use of Externally-Controlled Format String in wire-avs","details":"### Impact\nA remote format string vulnerability allowed an attacker to cause a denial of service or possibly execute arbitrary code.\n\n### Patches\n* 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)\n\n### Workarounds\n* No workaround known\n\n### References\n* Fixed in commit https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe\n\n### For more information\n\nIf you have any questions or comments about this advisory feel free to email us at [vulnerability-report@wire.com](mailto:vulnerability-report@wire.com)\n","published":"2022-03-01T19:15:08.403Z","modified":"2026-07-09T15:01:35.586492Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.02466,"percentile":0.83147,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.wire:avs","fixedVersion":"7.1.12"}],"fix":{"url":"https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe","label":"wireapp/wire-avs@40d373e"},"references":[{"type":"FIX","url":"https://github.com/wireapp/wire-avs/commit/40d373ede795443ae6f2f756e9fb1f4f4ae90bbe"},{"type":"FIX","url":"https://github.com/wireapp/wire-avs/security/advisories/GHSA-2j6v-xpf3-xvrv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41193"},{"type":"WEB","url":"https://github.com/wireapp/wire-avs"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T15:01:35.586492Z"}}