CVE-2026-78807: wpa_supplicant all · CWE-346
Affects wpaSource GCVE Database
Not known to be exploited · CVSS 7.1 High : upgrade to 2.12 soon.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.08% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.12
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade the Debian debian/wpa_supplicant package to 2.12.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Debiandebian/wpa_supplicantpkg:deb/debian/wpa_supplicantOther threats | Affected
| Fixed in
|
Ubuntu Pro 14.04 LTSwpapkg:deb/ubuntu/wpa?arch=source&distro=esm-infra-legacy/trustyOther threats | Affected
| Fixed in– |
Ubuntu 16.04 LTSwpapkg:deb/ubuntu/wpa?arch=source&distro=xenialOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTSwpapkg:deb/ubuntu/wpa?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSwpapkg:deb/ubuntu/wpa?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSwpapkg:deb/ubuntu/wpa?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, limit local access to trusted users and environments.
Description
A vulnerability in wpa_supplicant versions prior to 2.12 allows a local attacker to bypass proper network context and AKMP matching for PMKSA caching due to missing validation in the driver-based PMKSA selection path. This issue affects multiple SUSE and Ubuntu builds across various architectures. The vulnerability has a CVSS score of 7.1, indicating medium severity.
References
- nvd.nist.gov/vuln/detail/CVE-2026-78807 (opens in a new tab)
- w1.fi/security/2026-2/missing-network-context-validation-for-pmksa-caching.txt (opens in a new tab)
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_22022-1.json (opens in a new tab)
- bugzilla.suse.com/1280914 (opens in a new tab)
- suse.com/security/cve/CVE-2026-78807/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_24096-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-202624096-1/ (opens in a new tab)
- ubuntu.com/security/CVE-2026-78807 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-78807 (opens in a new tab)