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Vulnerability record · CVE-2021-3576 · published 28 October 2021

CVE-2021-3576: Bitdefender endpoint security tools execution with unnecessary privileges vulnerability

Bitdefender · Endpoint Security Tools

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.

7.8 CVSS 3.1 High EPSS 0.92% · top 39.1% CWE-250 · Execution with unnecessary privilegesCWE-269 · Improper privilege management
7.8CVSS 3.1 base score, v2 7.2
0.92%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.bitdefender.com/support/security-advisories/privilege-escalation-via-seimpersonateprivilege-in-bitdefender-e Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1276/ Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-1376/ Third Party AdvisoryVDB Entry
https://www.bitdefender.com/support/security-advisories/privilege-escalation-via-seimpersonateprivilege-in-bitdefender-e Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1276/ Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-21-1376/ Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-3576), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.