CVE-2026-53159: misc: fastrpc: fix DMA address corruption due to find_vma misuse

highCVSS 7.8CVE-2026-53159

CSIRTS triage

product: fastrpcOther

What: There is a DMA address corruption issue due to misuse of find_vma.
Who is affected: Deployments using fastrpc are affected.
Urgency: This vulnerability has a high severity rating (CVSS 7.8), indicating urgent remediation is needed.
Action: Apply the latest patches to fix the DMA address corruption.

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: high — CVSS 7.8
Published: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53159

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-2026-531590.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53159	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownexploitedUSN-8728-1: Linux kernel (GCP) vulnerabilitiesubuntu
unknownexploitedUSN-8727-1: Linux kernel (OEM) vulnerabilitiesubuntu
unknownexploitedUSN-8726-1: Linux kernel vulnerabilitiesubuntu
unknownDebian Linux Kernel Multiple Vulnerabilitieshkcert
unknownMultiple vulnerabilities in Microsoft Azure Linux (June 29, 2026)cert-fr-avis

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