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CVE Watch27 ago 2026

CVE-2026-80520

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_k

CVSS

7.5

Alto

EPSS

KEV

Exploit Today

0-100

Publicado: 26 ago 2026 · Última mod.: 27 ago 2026

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the kill path may be asked to remove a key that is not present. Read each slot once while holding the crypto state lock, check for NULL before looking at key_id, and only replace the slot that actually matches.

Referencias oficiales
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