CVE-2026-64297: module: decompress: check return value of module_extend_max_pages()

mediumCVSS 5.5CVE-2026-64297

CSIRTS triage

Other

What: This vulnerability involves checking the return value of module_extend_max_pages() in the module decompression process.
Who is affected: Deployments using the module decompression feature.
Urgency: Remediation is important to ensure module integrity, with no current exploitation reported.
Action: Apply the patch for CVE-2026-64297.

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: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64297

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-2026-642970.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64297	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2026-64297: In the Linux kernel, the following vulnerability has been resolved: module: decompress: check …nvd

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