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CVE-2026-14968

HIGHCVSS 7/10

Last modified

CVE-2026-14968 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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.

Description

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.

Metrics

CVSS 4.0
7/10

CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
TianoCoreEDK2<= edk2-stable202608

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-14968?
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.
How severe is CVE-2026-14968?
CVE-2026-14968 has a CVSS score of 7/10 (HIGH severity).
How do I fix CVE-2026-14968?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST