CVE-2026-78807

An issue in wpa_supplicant all versions before v.2.12 allows a local attacker to bypass proper network context and AKMP matching for PMKSA caching via missing validation in the driver based PMKSA selection path in wpa.c

CVE-2026-78807 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-78807, released September 11, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.1

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0008

0th percentile

An issue in wpa_supplicant all versions before v.2.12 allows a local attacker to bypass proper network context and AKMP matching for PMKSA caching via missing validation in the driver based PMKSA selection path in wpa.c

Where it's fixed

Product	Fixed in	Fix	Released
Linux
wpa · Debian 14	2:2.11-4	DEBIAN-CVE-2026-78807	Sep 11, 2026
wpa_supplicant · opensuse-leap 16.0	2.11-160000.5.1	OPENSUSE-SU-2026:22022-1	Oct 5, 2026
wpa_supplicant · sles 15.6	2.10-150600.7.11.1	SUSE-SU-2026:4492-1	Oct 5, 2026
wpa_supplicant · sles 15.7	2.11-150700.3.6.1	SUSE-SU-2026:4588-1	Nov 7, 2026
wpa_supplicant · sles 16.0	2.11-160000.5.1	SUSE-SU-2026:24144-1	Oct 5, 2026

Details

Published
September 11, 2026
Weakness
Origin Validation Error
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78807

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