PT-2026-47907 · Microsoft · Windows

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-42981

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Windows (affected versions not specified)

Description An integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network. Integer underflow occurs when an arithmetic operation results in a value smaller than the minimum representable value for that data type, causing it to wrap around to a very large positive number.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2026-42981

Affected Products

Windows

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-42981 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42981 · Vendor Advisory
• https://twitter.com/vuldb/status/2064401431436882342 · Twitter Post