CVE-2026-53059: dm log: fix out-of-bounds write due to region_count overflow

highCVSS 7CVE-2026-53059

CSIRTS triage

Memory corruption

What: This vulnerability is an out-of-bounds write due to region_count overflow.
Who is affected: Users of affected systems utilizing the dm log.
Urgency: Remediation is urgent due to high severity and potential for exploitation.
Action: Apply the relevant patches as soon as they are available.

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

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53059

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-2026-530590.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53059	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownUSN-8668-1: Linux kernel (GCP) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Red Hat Linux kernel (August 21, 2026)cert-fr-avis
unknownUSN-8665-1: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu
unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu
unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Red Hat Linux kernel (August 14, 2026)cert-fr-avis
unknownUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Red Hat Linux kernel (July 31, 2026)cert-fr-avis
unknownUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
highUSN-8620-1: Linux kernel vulnerabilitiesubuntu
highUSN-8619-1: Linux kernel (HWE) vulnerabilitiesubuntu

Recent advisories for dm log

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.

highCVE-2026-72105: In the Linux kernel, the following vulnerability has been resolved: dm-log: fix a bitset_size …nvd · 2026-08-15