Endpoint and server security
CVE-2025-2425: TOCTOU race condition vulnerability in ESET products on Windows
Time-of-check to time-of-use race condition vulnerability potentially allowed an attacker to use the installed ESET security software to clear the content of an arbitrary file on the file system.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 4.0 5.1
EPSS0.11%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| ESET NOD32 Antivirus 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Internet Security 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Smart Security Premium 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Security Ultimate 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Endpoint Antivirus for Windows 0 to 12.0.2049.0 | Upgrade past 12.0.2049.0; see the advisory |
| ESET Endpoint Antivirus for Windows 0 to 11.1.2059.0 | Upgrade past 11.1.2059.0; see the advisory |
| ESET Endpoint Security for Windows 0 to 12.0.2049.0 | Upgrade past 12.0.2049.0; see the advisory |
| ESET Endpoint Security for Windows 0 to 11.1.2059.0 | Upgrade past 11.1.2059.0; see the advisory |
| ESET Small Business Security 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Safe Server 0 to 18.1.13.0 | Upgrade past 18.1.13.0; see the advisory |
| ESET Server Security for Windows Server 0 to 12.0.12004.0 | Upgrade past 12.0.12004.0; see the advisory |
| ESET Server Security for Windows Server 0 to 11.1.12009.1 | Upgrade past 11.1.12009.1; see the advisory |
| ESET Mail Security for Microsoft Exchange Server 0 to 12.0.10003.0 | Upgrade past 12.0.10003.0; see the advisory |
| ESET Mail Security for Microsoft Exchange Server 0 to 11.1.10011.0 | Upgrade past 11.1.10011.0; see the advisory |
| ESET Security for Microsoft SharePoint Server 0 to 12.0.15004.0 | Upgrade past 12.0.15004.0; see the advisory |
| ESET Security for Microsoft SharePoint Server 0 to 11.1.15003.0 | Upgrade past 11.1.15003.0; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Time-of-check to time-of-use race condition vulnerability potentially allowed an attacker to use the installed ESET security software to clear the content of an arbitrary file on the file system.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.