---
id: CVE-2026-78807
title: >-
  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
summary: >-
  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
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-346
  - CWE-322
vendor: Red Hat
product: Red Hat Enterprise Linux 6
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
published: '2026-09-11'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:56:19.073'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78807'
references:
  - url: >-
      https://w1.fi/security/2026-2/missing-network-context-validation-for-pmksa-caching.txt
    label: cve@mitre.org
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-78807.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-78807'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2531997'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-78807'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78807'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00113
epssPercentile: 0.01301
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-11T20:10:48.208026Z'
ingestedAt: '2026-09-14T10:09:58.905Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-78807.json)