CVE-2021-37851: Local Privilege Escalation in ESET product for Windows
First published: Wed May 11 2022(Updated: )
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.
Credit: security@eset.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Eset Endpoint Antivirus | >=6.0<8.0.2053.0 | |
| Eset Endpoint Antivirus | >=8.1<8.1.2050.0 | |
| Eset Endpoint Antivirus | >=9.0<9.0.2046.0 | |
| Eset Endpoint Security | >=6.0<8.0.2053.0 | |
| Eset Endpoint Security | >=8.1<8.1.2050.0 | |
| Eset Endpoint Security | >=9.0<9.0.2046.0 | |
| Eset File Security | >=6.0<8.0.12013.0 | |
| Eset Internet Security | >=11.2<15.1.12.0 | |
| Eset Mail Security | >=6.0<8.0.10020.0 | |
| Eset Mail Security | >=6.0<8.0.14011.0 | |
| Eset Nod32 Antivirus | >=11.2<15.1.12.0 | |
| Eset Security | >=6.0<8.0.15009.0 | |
| Eset Server Security | >=6.0 | |
| Eset Server Security | >=8.0<9.0.12012.0 | |
| Eset Smart Security | >=11.2<15.1.12.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID is CVE-2021-37851.
What is the severity of CVE-2021-37851?
The severity of CVE-2021-37851 is high with a CVSS score of 7.8.
Which products are affected by this vulnerability?
This vulnerability affects various Windows products of ESET, including ESET NOD32 Antivirus, Eset Endpoint Antivirus, ESET Endpoint Security, ESET File Security, ESET Internet Security, ESET Mail Security, ESET Security, ESET Server Security, and ESET Smart Security.
How does this vulnerability work?
The vulnerability allows a logged-in user to exploit the repair feature of the ESET installer to execute malicious code with higher privileges, leading to local privilege escalation.
Is there a fix for CVE-2021-37851?
Yes, ESET has released a patch to address this vulnerability. It is recommended to update to the latest version of the affected products.
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