CVSS 4.0
7.0 highCVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:HCVE-2026-14968 tianocore edk2: Out-of-bounds Write
High (7.0) in tianocore edk2. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.
On this page
EDK2 contains vulnerabilities in
BIOS where skilled and privileged users or attackers may cause “Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could compromise
SMM handler integrity, cause system instability, and lead to denial of service. It could also impact Integrity and Availability.
Severity
- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-787 Out-of-bounds Write
- Published
- Modified
- Assigned by
- TianoCore (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| TianoCore EDK2 | through edk2-stable202608 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | edk2 | no fix listed | DEBIAN-CVE-2026-14968 |
| Ubuntu | 22.04:LTS, 24.04:LTS, Pro:16.04:LTS and 2 more | edk2 | no fix listed | UBUNTU-CVE-2026-14968 |
| Ubuntu | 26.04:LTS, 26.10 | edk2, edk2-hwe | no fix listed | UBUNTU-CVE-2026-14968 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.