What’s Vulnerable › Vulnerabilities

CVE-2023-45159: 1E Client installer can perform arbitrary file deletion on protected files

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-05 · updated 2026-06-17
• Weakness: CWE-59

Description

1E Client installer can perform arbitrary file deletion on protected files.   A non-privileged user could provide a symbolic link or Windows junction to point to a protected directory in the installer that the 1E Client would then clear on service startup. A hotfix is available from the 1E support portal that forces the 1E Client to check for a symbolic link or junction and if it finds one refuses to use that path and instead creates a path involving a random GUID. for v8.1 use hotfix Q23097 for v8.4 use hotfix Q23105 for v9.0 use hotfix Q23115 for SaaS customers, use 1EClient v23.7 plus hotfix Q23121

Affected products

• 1E Client: 8.1.2.62, 8.4.1.159, 9.0.1.88, 23.7.1.151

References

• https://www.teamviewer.com/en/resources/trust-center/security-bulletins/1e-2023-2001/
• https://www.1e.com/trust-security-compliance/cve-info/

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