CVE-2026-68294: net: qrtr: restrict socket creation to the initial network namespace

highCVSS 7.1CVE-2026-68294

CSIRTS triage

vendor: Linux product: Linux Kernel Privilege escalation

What: Socket creation restriction missing in qrtr networking driver, allowing namespace escape.
Who is affected: Systems using the qrtr (Qualcomm IPC Router) protocol in container or namespace environments.
Urgency: High severity (CVSS 7.1) enabling privilege escalation; patch immediately on affected systems.
Action: Update Linux kernel to version restricting qrtr socket creation to initial network namespace.

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-2026-68294

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-2026-682940.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-68294	coverage & exploitation status	NVD · CVE.org

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