Improper input validation in Apple macOS
CVE-2025-11934
Improper input validation in the TLS 1.3 CertificateVerify signature algorithm negotiation in wolfSSL 5.8.2 and earlier on multiple platforms allows for downgrading the signature algorithm used. For example when a client sends ECDSA P521 as the supported signature algorithm the server previously could respond as ECDSA P256 being the accepted signature algorithm and the connection would continue with using ECDSA P256, if the client supports ECDSA P256.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.002 (5.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Apple Macos
- Linux Linux_kernel
- Wolfssl — versions 3.12.0
Weakness classification (CWE)
References
- facts@wolfssl.com (Product)
- facts@wolfssl.com (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2025-11934?
- CVE-2025-11934 is a low-severity vulnerability in Apple macOS, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2025-11-21.
- How severe is CVE-2025-11934?
- Low severity. CVSS v3 base score is 2.7 out of 10.