What is the CVSS score of CVE-2025-63946?

CVE-2025-63946 has a CVSS 3.1 base score of 7.4 (High). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Windows are affected by CVE-2025-63946?

Tencent PC Manager versions through 17.10.28554.205 contain a privilege escalation vulnerability that could allow local users to gain elevated system access, potentially compromising Windows…

Is there a public PoC exploit available for CVE-2025-63946?

Yes, a public proof-of-concept exploit is available for CVE-2025-63946. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-63946?

Within 24 hours: Inventory all systems running Tencent PC Manager and restrict user access to affected versions where feasible. Within 7 days: Communicate advisory to affected users, disable or uninstall Tencent PC Manager if not business-critical, and consider alternative endpoint protection solutions. Within 30 days: Monitor vendor for patch availability and develop deployment plan; if no patch emerges, evaluate decommissioning the product in favor of supported alternatives.

Windows CVE-2025-63946

HIGH

Improper Link Resolution Before File Access (CWE-59)

2026-02-23 cve@mitre.org

Windows Privilege Escalation Race Condition Pcmanager

7.4

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 26, 2026 - 16:31 vuln.today

Public exploit code

CVE Published

Feb 23, 2026 - 20:28 nvd

HIGH 7.4

DescriptionNVD

A privilege escalation (PE) vulnerability in the Tencent PC Manager app thru 17.10.28554.205 on Windows devices enables a local user to execute programs with elevated privileges. However, execution requires that the local user is able to successfully exploit a race condition.

AnalysisAI

Technical ContextAI

Classified as CWE-59 (Improper Link Resolution Before File Access). Affects Pcmanager. A privilege escalation (PE) vulnerability in the Tencent PC Manager app thru 17.10.28554.205 on Windows devices enables a local user to execute programs with elevated privileges. However, execution requires that the local user is able to successfully exploit a race condition.

RemediationAI

Monitor vendor advisories for a patch.

CVE-2025-63946 vulnerability details – vuln.today

Back

Windows CVE-2025-63946

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

Share

External POC / Exploit Code