# CVE-2025-27918 — Anydesk

> As of 2025-12-08, CVE-2025-27918 is a CRITICAL-severity vulnerability in Anydesk, CVSS v3.1 9.8, EPSS 0.5% (43.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-27918, most recently “Working Public Exploit ("AnyPwn") for Pre-Auth AnyDesk Linux Heap Overflow Yielding Root Access”.

**Last updated:** 2025-12-08

## What is CVE-2025-27918?

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.

The record classifies CVE-2025-27918 under weakness class [CWE-190](https://intel.threadlinqs.com/cwe/CWE-190). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 338 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.8 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 43.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-11-06, last modified 2025-12-08

## Is CVE-2025-27918 being exploited?

No public exploitation evidence for CVE-2025-27918 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2025-12-08. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

## Affected products and versions

- **Anydesk**: Anydesk

## How to fix CVE-2025-27918

No vendor patch reference has been recorded for CVE-2025-27918 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-27918

1 tracked threat in the Threadlinqs corpus references CVE-2025-27918, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Working Public Exploit ("AnyPwn") for Pre-Auth AnyDesk Linux Heap Overflow Yielding Root Access](https://intel.threadlinqs.com/threat/TL-2026-3153) — HIGH · 2026-10-09

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-09. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

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

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-27918
Full detection coverage and IOCs for threats exploiting CVE-2025-27918 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp