CVE-2026-53195: USB: serial: io_ti: fix heap overflow in build_i2c_fw_hdr()

highCVSS 7.1CVE-2026-53195

CSIRTS triage

vendor: null product: USB Memory corruption

What: A heap overflow can occur in build_i2c_fw_hdr().
Who is affected: Users of USB devices with the affected driver may be impacted.
Urgency: Remediation is high urgency due to the high severity rating.
Action: Apply patches to fix the heap overflow 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: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53195

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-2026-531950.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53195	coverage & exploitation status	NVD · CVE.org

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