CVE-2026-52863: Memory corruption could lead to crash and denial of service

mediumCVSS 5.9CVE-2026-52863

CSIRTS triage

vendor: null product: null Denial of service Memory corruption

What: Memory corruption could lead to a crash and denial of service.
Who is affected: Affected systems experiencing high memory usage.
Urgency: Remediation is medium urgency as it can lead to service outages.
Action: Apply patches to address memory management issues.

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: medium — CVSS 5.9
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52863

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-2026-528630.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-52863	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

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