CVE-2026-80520

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

CVE-2026-80520 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80520 (version 7.1.10-1), released September 4, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0043
37th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 7.1.10-1 DEBIAN-CVE-2026-80520 Sep 4, 2026

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