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Affected Component
Analysis
wolfssl
Exploitable
Name
CVE-2026-2646
Description
A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/wolfSSL/wolfssl/pull/9748Issue Tracking
https://github.com/wolfSSL/wolfssl/pull/9949Issue Tracking
Analysis#
Vulnerability Ratings#
5
CVSSv4
8.1
CVSSv31
NaN
other