A local (authenticated) low-privileged user can exploit a behavior in an ESET installer to achieve arbitrary file overwrite (deletion) of any file via a symlink, due to insecure permissions. The possibility of exploiting this vulnerability is limited and can only take place during the installation phase of ESET products. Furthermore, exploitation can only succeed when Self-Defense is disabled. Affected products are: ESET NOD32 Antivirus, ESET Internet Security, ESET Smart Security, ESET Smart Security Premium versions 13.2 and lower; ESET Endpoint Antivirus, ESET Endpoint Security, ESET NOD32 Antivirus Business Edition, ESET Smart Security Business Edition versions 7.3 and lower; ESET File Security for Microsoft Windows Server, ESET Mail Security for Microsoft Exchange Server, ESET Mail Security for IBM Domino, ESET Security for Kerio, ESET Security for Microsoft SharePoint Server versions 7.2 and lower.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 8 products from eset, from eset, from eset and 5 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2021-01-26T18:15:45.613
2024-11-21T05:20:32.763
Modified
CVSSv3.1: 5.5 (MEDIUM)
AV:L/AC:L/Au:N/C:N/I:P/A:P
3.9
4.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | eset | endpoint_antivirus | ≤ 7.3 | Yes |
| Application | eset | endpoint_security | ≤ 7.3 | Yes |
| Application | eset | file_security | ≤ 7.2 | Yes |
| Application | eset | internet_security | ≤ 13.2 | Yes |
| Application | eset | internet_security | 1294 | Yes |
| Application | eset | mail_security | ≤ 7.2 | Yes |
| Application | eset | mail_security | ≤ 7.2 | Yes |
| Application | eset | nod32_antivirus | ≤ 7.3 | Yes |
| Application | eset | nod32_antivirus | ≤ 13.2 | Yes |
| Application | eset | security | ≤ 7.2 | Yes |
| Application | eset | security | ≤ 7.2 | Yes |
| Application | eset | smart_security | ≤ 7.3 | Yes |
| Application | eset | smart_security | ≤ 13.2 | Yes |
| Application | eset | smart_security | ≤ 13.2 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For eset's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.