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CVE-2025-11936

Potential DoS Vulnerability through Multiple KeyShareEntry with Same Group in TLS 1.3 ClientHello PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
wolfSSL / wolfSSLaffected 3.12.0 before 5.8.4

CWE

CWE-20

References

ADP enrichment

CISA-ADP

No English description supplied.