CVE-2026-53024: greybus: raw: fix use-after-free if write is called after disconnect

highCVSS 7.1CVE-2026-53024

CSIRTS triage

product: greybusOther

What: A use-after-free vulnerability occurs if write is called after disconnect in greybus.
Who is affected: Deployments using greybus for communication between devices.
Urgency: Remediation is high urgency due to the high severity rating, although exploitation has not been confirmed.
Action: Update greybus to the latest version to fix this vulnerability.

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: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53024

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-2026-530240.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53024	coverage & exploitation status	NVD · CVE.org

Recent advisories for greybus

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.

criticalCVE-2026-53025: greybus: raw: fix use-after-free on cdev closemsrc · 2026-06-09