CVE-2025-11933

DoS Vulnerability in wolfSSL TLS 1.3 CKS Extension

CVSS 2.3 LOWEPSS 0.4%CWE-20

Vexday Risk Score

8Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 2.3EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

21 nov 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Improper Input Validation in the TLS 1.3 CKS extension parsing in wolfSSL 5.8.2 and earlier on multiple platforms allows a remote unauthenticated attacker to potentially cause a denial-of-service via a crafted ClientHello message with duplicate CKS extensions.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Productos afectados

wofSSL · wolfSSL

Referencias

https://github.com/wolfSSL/wolfssl https://github.com/wolfSSL/wolfssl/pull/9132