CVE-2021-3576 json
Privilege escalation via SeImpersonatePrivilege
published 2021-10-28 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26885
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
Execution with Unnecessary Privileges vulnerability in Bitdefender Endpoint Security Tools, Total Security allows a local attacker to elevate to 'NT AUTHORITY\System. Impersonation enables the server thread to perform actions on behalf of the client but within the limits of the client's security context. This issue affects: Bitdefender Endpoint Security Tools versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 25.0.26.
Patch / fix
- Bitdefender Endpoint Security Tools 7.2.1.65
- Bitdefender Total Security 25.0.26
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Bitdefender Endpoint Security Tools
- Bitdefender Total Security
Classification
References
-
bitdefender.com
/support/security-advisories/privilege-escalation-via-seimpersonateprivilege-in-bitdefender-endpoint-security-
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1276/
third-party-advisory, vdb-entry
-
zerodayinitiative.com
/advisories/ZDI-21-1376/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-3576
- NVD CVE-2021-3576
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