CVE-2021-37851

Local Privilege Escalation in ESET product for Windows

HIGH

7.8

CVSS Score

Published: May 11, 2022 at 02:08 PM UTC

Updated: June 17, 2026 at 04:01 AM UTC

19 products affected across 2 vendorsNOD32 AntivirusSmart SecurityEndpoint Antivirus

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Endpoint Antivirus · ESET

95%

6.0 ≤ v < 8.0.2053.08.1 ≤ v < 8.1.2050.09.0 ≤ v < 9.0.2046.0

Affected range stops below 8.0.2053.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1.2050.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.2046.0, so it looks safe — our inference, not a vendor statement

Endpoint Security · ESET

95%

6.0 ≤ v < 8.0.2053.08.1 ≤ v < 8.1.2050.09.0 ≤ v < 9.0.2046.0

Affected range stops below 8.0.2053.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1.2050.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.2046.0, so it looks safe — our inference, not a vendor statement

File Security · ESET

95%

6.0 ≤ v < 8.0.12013.0

Affected range stops below 8.0.12013.0, so it looks safe — our inference, not a vendor statement

Internet Security · ESET

95%

11.2 ≤ v < 15.1.12.0

Affected range stops below 15.1.12.0, so it looks safe — our inference, not a vendor statement

Mail Security · ESET

95%

6.0 ≤ v < 8.0.10020.06.0 ≤ v < 8.0.14011.0

Affected range stops below 8.0.10020.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.0.14011.0, so it looks safe — our inference, not a vendor statement

NOD32 Antivirus · ESET

95%

11.2 ≤ v < 15.1.12.0

Affected range stops below 15.1.12.0, so it looks safe — our inference, not a vendor statement

Security · ESET

95%

6.0 ≤ v < 8.0.15009.0

Affected range stops below 8.0.15009.0, so it looks safe — our inference, not a vendor statement

Server Security · ESET

95%

v ≥ 6.08.0 ≤ v < 9.0.12012.0

Affected range stops below 9.0.12012.0, so it looks safe — our inference, not a vendor statement

Smart Security · ESET

95%

11.2 ≤ v < 15.1.12.0

Affected range stops below 15.1.12.0, so it looks safe — our inference, not a vendor statement

Endpoint Antivirus · ESET Spol S R O

60%

6.0 ≤ v < 9.0.2046.06.0

Affected range stops below 9.0.2046.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

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

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-280CWE-755

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