What is the CVSS score of CVE-2025-27917?

CVE-2025-27917 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.5%.

Which versions of Windows are affected by CVE-2025-27917?

Organizations using AnyDesk for Windows face notable risk from CVE-2025-27917, a null pointer dereference vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-27917?

Yes, a public proof-of-concept exploit is available for CVE-2025-27917. Prioritise patching immediately. EPSS: 0.5%.

How to fix or mitigate CVE-2025-27917?

Within 30 days: Identify all affected systems running AnyDesk for Windows and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Windows CVE-2025-27917

HIGH

NULL Pointer Dereference (CWE-476)

2025-11-06 cve@mitre.org

Windows Denial Of Service Deserialization Google Null Pointer Dereference Apple iOS macOS Microsoft Android Anydesk

7.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

PoC Detected

Dec 08, 2025 - 17:16 vuln.today

Public exploit code

CVE Published

Nov 06, 2025 - 18:15 nvd

HIGH 7.5

DescriptionNVD

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. Remote Denial of Service can occur because of incorrect deserialization that results in failed memory allocation and a NULL pointer dereference.

AnalysisAI

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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. 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. Remote Denial of Service can occur because of incorrect deserialization that results in failed memory allocation and a NULL pointer dereference. Affected products include: Anydesk. Version information: before 9.0.5.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

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CVE-2025-27917 vulnerability details – vuln.today

Back

Windows CVE-2025-27917

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code