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HIGH

CVE-2026-42974

Windows Performance Monitor Remote Code Execution Vulnerability

CVSS v3

8.1

HIGH

EPSS Score

0.7 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

none

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-42974 yet.

Full record on NVD

Description

Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Published
2026-06-19
Last Modified
2026-07-08
MSRC Title
Windows Performance Monitor Remote Code Execution Vulnerability

Frequently asked questions

What is CVE-2026-42974?

Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.

Is CVE-2026-42974 actively exploited?

Active exploitation of CVE-2026-42974 has not been confirmed. Its EPSS score was 0.7% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-42974?

CVE-2026-42974 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C.

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