CVE-2025-27918

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-11-06 · updated 2026-06-17
Weakness: CWE-190

Description

An issue was discovered in AnyDesk for Windows before 9.0.5, AnyDesk for macOS before 9.0.1, AnyDesk for Linux before 7.0.0, AnyDesk for iOS before 7.1.2, and AnyDesk for Android before 8.0.0. It has an integer overflow and resultant heap-based buffer overflow via a UDP packet during processing of an Identity user image within the Discovery feature, or when establishing a connection between any two clients.

Affected products

AnyDesk: before 9.0.0 — fixed in 9.0.0

How to fix

Upgrade to a fixed version: AnyDesk 9.0.0. Check the vendor advisory for mitigations.

References

https://anydesk.com/en/changelog/windows
https://dspace.cvut.cz/bitstream/handle/10467/122721/F8-DP-2025-Krejsa-Vojtech-DP_Krejsa_Vojtech_2025.pdf

Get alerted when CVE-2025-27918 or the next vulnerability affects your stack