Improper Certificate Validation Affecting wolfssl package, versions [5.6.4,)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-WOLFSSL-13057328
- published26 Sept 2025
- disclosed18 Jul 2025
- creditThomas Leong
Introduced: 18 Jul 2025
CVE-2025-7395 (opens in a new tab)How to fix?
Upgrade wolfssl to version or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation via the certificate verification process on MacOS systems when built with both WOLFSSL_SYS_CA_CERTS and WOLFSSL_APPLE_NATIVE_CERT_VALIDATION options enabled. An attacker can impersonate a trusted server by presenting a certificate issued by a trusted certificate authority, regardless of the actual domain name. This occurs because the native trust store verification routine overrides errors produced elsewhere in the wolfSSL certificate verification process, including failures due to hostname matching/SNI, OCSP, CRL, etc.
Workaround
This vulnerability can be mitigated by manually loading CA certificates into the software instead of relying on native certificate verification.