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CVE-2026-5507mediumCWE-502

Session Cache Restore — Arbitrary Free via Deserialized Pointer

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.1epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
When restoring a session from cache, a pointer from the serialized session data is used in a free operation without validation. An attacker who can poison the session cache could trigger an arbitrary free. Exploitation requires the ability to inject a crafted session into the cache and for the application to call specific session restore APIs.
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
wolfSSL · wolfSSL