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Affected Component
Analysis
wolfssl
Exploitable
Name
CVE-2026-6679
Description
A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This affects builds using DTLS 1.3 and wolfSSL version 5.9.0 and earlier. A fix was added to the 5.9.1 release.
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/wolfSSL/wolfssl/pull/10116Issue Tracking
https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Analysis#
Vulnerability Ratings#
8.8
CVSSv4
7.5
CVSSv31
NaN
other