CVE-2026-64270: Input: mms114 - reject an oversized device packet size

highCVSS 7.1CVE-2026-64270

CSIRTS triage

product: mms114Other

What: The vulnerability involves rejecting oversized device packet sizes.
Who is affected: Deployments using mms114 are affected.
Urgency: Remediation urgency is unclear due to unknown severity and no exploitation reported.
Action: Monitor for updates regarding this issue.

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

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.1
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64270

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-2026-642700.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64270	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2026-64270: In the Linux kernel, the following vulnerability has been resolved: Input: mms114 - reject an …nvd

Recent advisories for Input

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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