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CVE-2026-26197: Array full size, element count, and element size are not checked to make sure they match in H5Odtype.c

unknownCVE-2026-26197

CSIRTS triage

What
A mismatch in array size checks in H5Odtype.c has been identified.
Who is affected
No specific deployments or versions are mentioned.
Urgency
The urgency is unclear as the severity is listed as unknown.
Action
No specific action is provided.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
unknown
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26197

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-2026-26197coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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