CVE-2025-10263: ARM: CVE-2025-10263 Completion of affected memory accesses might not be guaranteed by completion of a TLBI [kernel]

criticalCVSS 9.3CVE-2025-10263

No cwe for this issue in Windows Kernel allows an unauthorized attacker to elevate privileges locally.

CSIRTS triage

vendor: Microsoft product: Windows Kernel Privilege escalation

What: This vulnerability allows an unauthorized attacker to elevate privileges locally.
Who is affected: Deployments of the Windows Kernel.
Urgency: Remediation is critical due to the high severity rating and potential for exploitation.
Action: Patch the Windows Kernel for CVE-2025-10263.

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: critical — CVSS 9.3
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-10263

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-2025-102630.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-10263	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
high[UPDATE] [high] Microsoft Windows: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Red Hat Linux kernel (August 14, 2026)cert-fr-avis
medium[UPDATE] [medium] Xen: Multiple vulnerabilitiescert-bund
unknownDSA-6424-1 xen - security updatedebian
high[UPDATE] [high] AMD ARM and EPYC processors: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Red Hat Linux kernel (August 07, 2026)cert-fr-avis
unknownRedHat Linux Kernel Multiple Vulnerabilitieshkcert
unknownMultiple vulnerabilities in Red Hat Linux kernel (July 31, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Red Hat Linux kernel (July 10, 2026)cert-fr-avis
unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert
unknownMultiple vulnerabilities in Red Hat Linux kernel (July 3, 2026)cert-fr-avis

Recent advisories for ARM

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-2026-74677: In the Linux kernel, the following vulnerability has been resolved: net: usb: ipheth: fix carr…nvd · 2026-08-22
criticalCVE-2026-74662: In the Linux kernel, the following vulnerability has been resolved: inet: frags: publish queue…nvd · 2026-08-22
criticalCVE-2026-74628: In the Linux kernel, the following vulnerability has been resolved: net/x25: fix use-after-fre…nvd · 2026-08-22
highCVE-2026-74615: In the Linux kernel, the following vulnerability has been resolved: vxlan: do not arm the agei…nvd · 2026-08-22
mediumCVE-2026-8810: On ARM platforms, a vulnerability in the architecture design of HDD Password could allow an att…nvd · 2026-08-19
mediumCVE-2026-12629: The ARM PL011 UART driver in drivers/serial/uart_pl011.c fails to acknowledge receive error in…nvd · 2026-08-17