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CVE-2026-68088: usb: gadget: function: rndis: add length check to response query

highCVSS 7.1CVE-2026-68088

CSIRTS triage

What
Missing length validation in USB RNDIS gadget function response query handler enables buffer overflow.
Who is affected
Systems running affected Linux kernel versions with USB RNDIS gadget support enabled.
Urgency
High severity (CVSS 7.1) buffer overflow risk; kernel patch required to prevent exploitation.
Action
Update to a patched Linux kernel version that includes length checking in the RNDIS response handler.

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
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68088

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-68088coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for usb

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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