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Vulnerability DatabaseCVE-2025-11936

CVE-2025-11936: 
wolfSSL vulnerability analysis and mitigation

Improper input validation in the TLS 1.3 KeyShareEntry parsing in wolfSSL v5.8.2 on multiple platforms allows a remote unauthenticated attacker to cause a denial-of-service by sending a crafted ClientHello message containing duplicate KeyShareEntry values for the same supported group, leading to excessive CPU and memory consumption during ClientHello processing.

Source: NVD

Related wolfSSL vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-11936MEDIUM6.3
  • wolfSSLwolfSSL
  • cpe:2.3:a:wolfssl:wolfssl
NoYesNov 21, 2025
CVE-2025-12889LOW2.3
  • wolfSSLwolfSSL
  • wolfssl
NoYesNov 22, 2025
CVE-2025-11934LOW2.1
  • wolfSSLwolfSSL
  • wolfssl
NoYesNov 21, 2025
CVE-2025-13912LOW1
  • wolfSSLwolfSSL
  • cpe:2.3:a:wolfssl:wolfssl
NoYesDec 11, 2025
CVE-2025-12888LOW1
  • wolfSSLwolfSSL
  • wolfssl
NoYesNov 21, 2025

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