PT-2026-40087 · Undefined · Undefined

Published 2026-05-12 · Updated 2026-05-12 · CVE-2026-20753

Mitre

CVSS v4.0

8.7

High

Base vector

AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Integer overflow in the UEFI firmware for the Slim Bootloader may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-20753

Affected Products

Undefined

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-20753 · Security Note
• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01425.html · Note