Summary
generated automatically from NVD dataCVE-2026-6731 affects wolfSSL, where X.509 name constraint checking can be bypassed through the certificate's Subject Common Name when it is treated as a DNS-type name. As a result, a certificate whose Subject CN violates the DNS name constraints of its issuing CA could be wrongly accepted, undermining certificate validation (CWE-295). The flaw is rated 7.5 (HIGH, CVSS v3.1) and is exploitable over the network without privileges or user interaction, with an integrity impact.
NVD description
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.
EPSS · FIRST.org
0.12%probability of exploitation in the next 30 days
Higher than 1% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-19, recomputed daily by FIRST.org.
CVSS v3.1 Score
Information
- Published
- 25 juin 2026
- Updated
- 27 juin 2026
- Status
- Analyzed
- Source
- facts@wolfssl.com
Affected products
Weaknesses (CWE)
References (2)
- https://github.com/wolfSSL/wolfssl/pull/10223Issue TrackingPatch
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Similar CVEs
Other vulnerabilities of type CWE-295
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