Vulnerability · Published Sep 11, 2026 · Assigned by mitre
CVE-2026-78807
High 7.1
In plain English
A high-severity security flaw in the wpa package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)<0.1%top 99.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | wpa | no fix listed | DEBIAN-CVE-2026-78807 |
| Debian:13 | wpa | no fix listed | DEBIAN-CVE-2026-78807 |
| Debian:14 | wpa | 2:2.11-4 | DEBIAN-CVE-2026-78807 |
| Ubuntu:22.04:LTS | wpa | no fix listed | UBUNTU-CVE-2026-78807 |
| Ubuntu:24.04:LTS | wpa | no fix listed | UBUNTU-CVE-2026-78807 |
| Ubuntu:26.04:LTS | wpa | no fix listed | UBUNTU-CVE-2026-78807 |
| Ubuntu:26.10 | wpa | no fix listed | UBUNTU-CVE-2026-78807 |
Affected products (as reported)
Weakness: CWE-346 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N