PT-2026-47902 · Microsoft · Windows Performance Monitor+1

CVE-2026-42974 · Published 2026-06-09 · Updated 2026-06-10

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 Windows Performance Monitor (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. This condition can lead to remote code execution (RCE), which is the ability of an attacker to execute arbitrary commands on a target machine from a remote location.

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

DoS

RCE

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2026-08205

CVE-2026-42974

Affected Products

Windows

Windows Performance Monitor

References · 7

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-42974 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42974 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/733217 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-42974 · Security Note
• https://bdu.fstec.ru/vul/2026-08205 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42974 · Security Note
• https://twitter.com/windowsforum/status/2064541901798138024 · Twitter Post