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CVE-2026-53149: thunderbolt: Bound root directory content to block size

mediumCVSS 5.5CVE-2026-53149

CSIRTS triage

Other
What
This vulnerability bounds root directory content to block size in Thunderbolt.
Who is affected
Deployments using Thunderbolt technology.
Urgency
Remediation is important due to the medium severity rating.
Action
Apply the latest patches to mitigate 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 5.5
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53149

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-2026-53149coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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