Vulnerability Report

CVE-2026-81963

CISA KEV Active

Title: CVE-2026-81963

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-81963.

CWE Category CWE-59

Published Date Sep 08, 2026

Modified Date Sep 09, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

0.63%

Vulnerability Summary

CVE-2026-81963: Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

Impacted Vendors

microsoft 5

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81963

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-81963 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

September 09, 2026 MODIFIED

Vulnerability data updated via NVD.

September 08, 2026 MODIFIED

Vulnerability data updated via NVD.

September 08, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.