CVE-2026-78807: wpa Origin Validation Error
CVSS: 7.1v3.1HighAwaiting analysis
AliasesSUSE-SU-2026:24096-1SUSE-SU-2026:4494-1SUSE-SU-2026:4587-1SUSE-SU-2026:4588-1SUSE-SU-2026:4590-1UBUNTU-CVE-2026-78807DEBIAN-CVE-2026-78807openSUSE-SU-2026:22022-1SUSE-SU-2026:24132-1SUSE-SU-2026:24144-1
Published 11-09-2026Last modified 11-09-2026
Vulnerability summary
CVE-2026-78807 is a high (CVSS 7.1) Origin Validation Error vulnerability in wpa. EPSS estimates a 0.08% chance of exploitation in the next 30 days, higher than 0.1% of scored vulnerabilities.
CVSS score
7.1/10
010
High · v3.1 (CVE.org)EPSS score
0.08%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 11-09-2026PublishedVulnerability first disclosed.
- 11-09-2026Last modifiedVulnerability information updated.
Description
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
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.08%
Chance of exploitation in the next 30 days
Percentile
0%
Versus all other CVEs
30-day change
0.00 pp
From 0.08% on 22-09-2026
22-09-202622-10-2026
EPSS score0.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse18 products
- wpa_supplicant&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 2.9-150000.4.45.1
- wpa_supplicant&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 2.9-150000.4.45.1
- wpa_supplicant&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 2.10-150500.3.9.1
- wpa_supplicant&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 2.10-150500.3.9.1
- wpa_supplicant&distro=SUSE Linux Enterprise Micro 5.3< 2.9-150000.4.45.1
Debian1 product
- wpaAll versions (No fix recorded)
Opensuse1 product
- wpa_supplicant&distro=openSUSE Leap 16.0< 2.11-160000.5.1
Ubuntu1 product
- wpaAll versions (No fix recorded)
4 vendors · 21 products
