{"id":"CVE-2022-25638","aliases":["DEBIAN-CVE-2022-25638","EUVD-2022-30298","GHSA-xxrj-j9r7-g9q6","JLSEC-2026-669","UBUNTU-CVE-2022-25638"],"status":"published","title":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication...","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00628,"percentile":0.50392,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2022-02-24T01:06:54Z","modified":"2026-10-28T02:30:45Z","fixes":[{"ecosystem":"Debian:12","package":"wolfssl","fixed_in":["5.2.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"wolfssl","fixed_in":["5.2.0-1"],"sources":["osv"]},{"ecosystem":"Julia","package":"wolfSSL_jll","fixed_in":["5.7.2+0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-1"}]}]},{"source":"osv","ecosystem":"Julia","package":"wolfSSL_jll","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.7.2+0"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.2+dfsg-2","3.12.0+dfsg-1","3.12.2+dfsg-1","3.13.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0+dfsg-2","4.2.0+dfsg-1","4.2.0+dfsg-2","4.2.0+dfsg-3","4.3.0+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wolfssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.0-3","5.0.0-1","5.1.1-1","5.2.0-1","5.2.0-2"]}],"products":[{"vendor":"wolfssl","product":"wolfssl"}],"references":[{"url":"https://github.com/wolfSSL/wolfssl/pull/4813","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://www.wolfssl.com/docs/security-vulnerabilities/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-25638","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xxrj-j9r7-g9q6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/25xxx/CVE-2022-25638.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-25638","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-25638","tags":["report"]},{"url":"https://github.com/wolfSSL/wolfssl/commit/e13861bcde8015bb99ddb034224afb66e2fb89b8","tags":["report"]},{"url":"https://github.com/wolfSSL/wolfssl/commit/08047b2d959ee5e21a4a2c672308f45fec61f059","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-25638","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-25638","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T01:06:54Z","modified":"2024-08-03T04:42:50.339Z","updated_at":"2026-11-02T14:34:28.707644Z"}],"euvd":[{"id":"EUVD-2022-30298","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T01:06:54Z","modified":"2024-08-03T04:42:50Z","updated_at":"2026-11-03T03:25:46.954473Z"}],"ghsa":[{"id":"GHSA-xxrj-j9r7-g9q6","title":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication...","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-25T00:01:01Z","modified":"2023-02-03T05:06:28Z","cwes":["CWE-295"],"updated_at":"2026-11-02T14:53:54.29937Z"}],"nvd":[{"id":"CVE-2022-25638","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T15:15:32.04Z","modified":"2026-06-17T04:33:48.993Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:07:12.711288Z"}],"osv":[{"id":"DEBIAN-CVE-2022-25638","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T15:15:32.04Z","modified":"2026-11-03T08:03:50.910073032Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T08:23:57.167851Z"},{"id":"JLSEC-2026-669","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the `sig_algo` field differs between the `certificate_verify` message and the certificate message.","status":"published","published":"2026-07-14T21:41:35.775Z","modified":"2026-07-25T18:23:59.285521776Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:47:19.003546Z"},{"id":"UBUNTU-CVE-2022-25638","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T15:15:00Z","modified":"2026-04-22T13:19:06.169884Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:53:53.13624Z"},{"id":"CVE-2022-25638","description":"In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.","status":"published","published":"2022-02-24T01:06:54Z","modified":"2026-10-28T02:30:45.322427366Z","updated_at":"2026-11-02T15:44:24.758293Z"}]}}