CVE-2026-33825

Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

6.75% chance of exploitation in the next 30 days, 93th percentile

CISA KEV

added 2026-04-22, used in ransomware campaigns

Published

2026-04-14

Updated

2026-08-14

Proof-of-concept exploits (4)

• Joe1sn/CVE-2026-338254★ · 2026-05-02
• kaleth4/CVE-2026-338250★ · 2026-04-22
• 0xBlackash/CVE-2026-338256★ · 2026-05-20
• kaleth4/UnBlueHammer

References

• CVE Record
• NVD entry

Related

• CVE-2022-22965
• CVE-2023-21768
• CVE-2026-40369
• CVE-2014-6271
• CVE-2019-7711
• CVE-2021-44228