What’s Vulnerable › Vulnerabilities

CVE-2023-51636: Avira Prime Link Following Local Privilege Escalation Vulnerability

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-22 · updated 2026-06-17
• Weakness: CWE-59

Description

Avira Prime Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avira Prime. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Avira Spotlight Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-21600.

Affected products

• Avira Prime: before 6.27.19 — fixed in 6.27.19

How to fix

Upgrade to a fixed version: Avira Prime 6.27.19. Check the vendor advisory for mitigations.

References

• https://www.zerodayinitiative.com/advisories/ZDI-24-469/
• https://www.zerodayinitiative.com/advisories/ZDI-24-469/

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