ESET NOD32 Antivirus toctou

Summaryinfo

A vulnerability classified as problematic has been found in ESET NOD32 Antivirus, Internet Security, Smart Security Premium, Security Ultimate, Endpoint Antivirus for Windows, Endpoint Security for Windows, Small Business Security, Safe Server, Server Security for Windows Server, Mail Security for Microsoft Exchange Server and Security for Microsoft SharePoint Server. This impacts an unknown function. Performing a manipulation results in toctou. This vulnerability is known as CVE-2025-2425. Attacking locally is a requirement. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ESET NOD32 Antivirus, Internet Security, Smart Security Premium, Security Ultimate, Endpoint Antivirus for Windows, Endpoint Security for Windows, Small Business Security, Safe Server, Server Security for Windows Server, Mail Security for Microsoft Exchange Server and Security for Microsoft SharePoint Server. This affects some unknown processing. The manipulation with an unknown input leads to a toctou vulnerability. CWE is classifying the issue as CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE 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.

It is possible to read the advisory at support.eset.com. This vulnerability is uniquely identified as CVE-2025-2425 since 03/17/2025. The exploitability is told to be difficult. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21865). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Groupware Software

Vendor

• ESET

Name

• Endpoint Antivirus for Windows
• Endpoint Security for Windows
• Internet Security
• Mail Security for Microsoft Exchange Server
• NOD32 Antivirus
• Safe Server
• Security for Microsoft SharePoint Server
• Security Ultimate
• Server Security for Windows Server
• Small Business Security
• Smart Security Premium

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion