PT-2026-32791 · Microsoft · Luafv+1

Souhail Hammou + 1 · Published 2026-04-14 · Updated 2026-04-17 · CVE-2026-27929

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows LUAFV (affected versions not specified)

Description A time-of-check time-of-use (toctou) race condition occurs in Windows LUAFV. This allows an authorized attacker to elevate privileges locally. A race condition is a situation where the system's behavior depends on the sequence or timing of uncontrollable events.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

BDU:2026-05434

CVE-2026-27929

Affected Products

Luafv

Windows

References · 6

• https://bdu.fstec.ru/vul/2026-05434 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-27929 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27929 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27929 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-27929 · Security Note
• https://twitter.com/CVEnew/status/2045112972176220628 · Twitter Post