CVE-2022-25638 json
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.
published 2022-02-24 4 y ago modified 2026-07-25 3 mo ago also EUVD-2022-30298 , JLSEC-2026-669
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- julia wolfSSL_jll 5.7.2+0
- wolfssl wolfssl 5.2.0
- wolfssl Debian 13, Debian 12 5.2.0-1
debian advisories DEBIAN-CVE-2022-25638
- github.com/wolfSSL/wolfssl#4813 pull request
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| julia | wolfSSL_jll | <5.7.2+0 |
5.7.2+0 |
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
github.com
/wolfSSL/wolfssl/pull/4813
patch, third-party-advisory, web
-
wolfssl.com
/docs/security-vulnerabilities/
vendor-advisory, web
Sources
- CVE List CVE-2022-25638
- NVD CVE-2022-25638
- OSV JLSEC-2026-669
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