CVE-2026-64458: mm/damon/ops-common: handle extreme intervals in damon_hot_score()

mediumCVSS 5.5CVE-2026-64458

CSIRTS triage

Other

What: The damon_hot_score() function does not handle extreme intervals properly.
Who is affected: Deployments using the damon subsystem.
Urgency: Remediation is necessary to ensure proper functionality.
Action: Apply the relevant patches once available.

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-2026-64458

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-2026-644580.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64458	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2026-64458: In the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: handl…nvd

Recent advisories for mm/damon/ops-common

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.

unknownCVE-2026-64458: In the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: handl…nvd · 2026-07-25