PT-2026-42157 · Microsoft · Defender
Acd421
+3
·
Published
2026-05-20
·
Updated
2026-05-21
·
CVE-2026-41091
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Microsoft Defender (affected versions not specified)
Description
Improper link resolution before file access, also known as link following, allows an authorized attacker to elevate privileges locally. This issue has been actively exploited in the wild as a zero-day.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
LPE
Link Following
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Weakness Enumeration
Related Identifiers
Affected Products
Defender