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CVE-2025-11936
Published: Nov 21, 2025
Modified: Dec 8, 2025
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
wolfSSL | wolfSSL | affected 3.12.0 - < 5.8.4 |
Weaknesses (CWE)
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