ZDI-26-400: (0Day) AnyDesk Screen Recording Link Following Denial-of-Service Vulnerability
A local vulnerability in AnyDesk allows attackers with low-privileged code execution to cause a denial-of-service condition by exploiting the handling of screen recording files. The flaw involves creating junctions to abuse the service into creating arbitrary files, leading to service disruption. No patch or official fix has been confirmed, and mitigation is limited to restricting interaction with the product.
AI Analysis
Technical Summary
This vulnerability in AnyDesk enables local attackers who can execute low-privileged code to create a denial-of-service condition by exploiting improper handling of screen recording files. Specifically, attackers can create junctions that cause the AnyDesk service to create arbitrary files, resulting in denial-of-service. The vulnerability was reported to the vendor in March 2025, but as of the July 2026 advisory release, no vendor fix or patch has been confirmed. The advisory notes that mitigation options are limited to restricting interaction with the product. The CVSS score assigned by ZDI is 4.7, reflecting low severity.
Potential Impact
Successful exploitation results in denial-of-service on affected AnyDesk installations, disrupting service availability. There is no impact on confidentiality or integrity. Exploitation requires local access with low privileges and no user interaction.
Mitigation Recommendations
No official patch or fix is currently confirmed. The advisory recommends restricting interaction with the AnyDesk product as the primary mitigation strategy. Users should monitor vendor communications for updates and apply any future patches promptly.
ZDI-26-400: (0Day) AnyDesk Screen Recording Link Following Denial-of-Service Vulnerability
Description
A local vulnerability in AnyDesk allows attackers with low-privileged code execution to cause a denial-of-service condition by exploiting the handling of screen recording files. The flaw involves creating junctions to abuse the service into creating arbitrary files, leading to service disruption. No patch or official fix has been confirmed, and mitigation is limited to restricting interaction with the product.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in AnyDesk enables local attackers who can execute low-privileged code to create a denial-of-service condition by exploiting improper handling of screen recording files. Specifically, attackers can create junctions that cause the AnyDesk service to create arbitrary files, resulting in denial-of-service. The vulnerability was reported to the vendor in March 2025, but as of the July 2026 advisory release, no vendor fix or patch has been confirmed. The advisory notes that mitigation options are limited to restricting interaction with the product. The CVSS score assigned by ZDI is 4.7, reflecting low severity.
Potential Impact
Successful exploitation results in denial-of-service on affected AnyDesk installations, disrupting service availability. There is no impact on confidentiality or integrity. Exploitation requires local access with low privileges and no user interaction.
Mitigation Recommendations
No official patch or fix is currently confirmed. The advisory recommends restricting interaction with the AnyDesk product as the primary mitigation strategy. Users should monitor vendor communications for updates and apply any future patches promptly.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-400/","fetched":true,"fetchedAt":"2026-07-09T11:08:30.635Z","wordCount":288}
Threat ID: 6a4f818768715ace4335a9b6
Added to database: 07/09/2026, 11:09:59 UTC
Last enriched: 07/09/2026, 11:10:31 UTC
Last updated: 07/10/2026, 00:00:36 UTC
Views: 11
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