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Fencer Vulns
high 7.1

CVE-2026-78807 json

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…

published 2026-09-11 59 d ago modified 2026-09-22 47 d ago also EUVD-2026-76184

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

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

Patch / fix

  • wpa Debian 14 2:2.11-4

debian advisories DEBIAN-CVE-2026-78807

  • wpa_supplicant Linux Micro 6.1 2.11-slfo.1.1_3.1
  • wpa_supplicant Linux Micro 6.0 2.10-159998.1.1
  • wpa_supplicant SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 2.10-150500.3.9.1
  • wpa_supplicant SLE Module for Basesystem 15 SP7 2.11-150700.3.6.1
  • wpa_supplicant SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +3 more 2.9-150000.4.45.1
  • wpa_supplicant SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.11-160000.5.1
  • wpa_supplicant SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.9-23.26.1
  • wpa_supplicant SLES for SAP 15 SP6, SLES 15 SP6-LTSS 2.10-150600.7.11.1

suse advisories SUSE-SU-2026:24278-1SUSE-SU-2026:24132-1SUSE-SU-2026:4590-1SUSE-SU-2026:4588-1SUSE-SU-2026:4587-1SUSE-SU-2026:24096-1

  • wpa_supplicant openSUSE Leap 16.0 2.11-160000.5.1

opensuse advisories openSUSE-SU-2026:22022-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-78807 updated cvss 7.1

wpa_supplicant: wpa_supplicant: Security bypass via missing PMKSA validation

  • Red Hat Enterprise Linux 6 wpa_supplicant
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 wpa_supplicant Red Hat Enterprise Linux 8 wpa_supplicant Red Hat Enterprise Linux 9 wpa_supplicant Red Hat Enterprise Linux 10 wpa_supplicant
    affected: workaround, no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
58 d ago

Exploit prediction

0.08% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.