CVE-2026-64271: Input: touchwin - reset the packet index on every complete packet

mediumCVSS 6.2CVE-2026-64271

CSIRTS triage

What: An issue requires resetting the packet index on every complete packet in touchwin.
Who is affected: Deployments using the input system may be affected.
Urgency: Remediation urgency is unclear due to unknown severity and exploitation status.
Action: Monitor for updates regarding this issue.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 6.2
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64271

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-642710.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64271	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownCVE-2026-64271: In the Linux kernel, the following vulnerability has been resolved: Input: touchwin - reset th…nvd

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