CVE-2026-64133: ALSA: asihpi: Fix potential OOB array access at reading cache

highCVSS 7.1CVE-2026-64133

CSIRTS triage

Other

What: A potential out-of-bounds array access issue in ALSA asihpi has been fixed.
Who is affected: Deployments using affected ALSA drivers.
Urgency: Remediation is high urgency due to the potential for exploitation.
Action: Update to the latest ALSA driver.

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 7.1
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64133

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-2026-641330.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64133	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

highUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
highUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
highUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
highUSN-8620-1: Linux kernel vulnerabilitiesubuntu
highUSN-8618-1: Linux kernel vulnerabilitiesubuntu
highUSN-8610-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu
highUSN-8575-3: Linux kernel vulnerabilitiesubuntu
highUSN-8603-1: Linux kernel (Azure) vulnerabilitiesubuntu
unknownMultiple vulnerabilities in Ubuntu Linux kernel (July 24, 2026)cert-fr-avis
highUSN-8576-2: Linux kernel (NVIDIA Tegra) vulnerabilitiesubuntu
highUSN-8575-2: Linux kernel vulnerabilitiesubuntu
highUSN-8593-1: Linux kernel vulnerabilitiesubuntu

Recent advisories for ALSA

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-2026-64491: In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fi…nvd · 2026-07-25
highCVE-2026-64490: In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: Validate con…nvd · 2026-07-25
unknownCVE-2026-64489: In the Linux kernel, the following vulnerability has been resolved: ALSA: ymfpci: check snd_ct…nvd · 2026-07-25
unknownCVE-2026-64488: In the Linux kernel, the following vulnerability has been resolved: ALSA: aoa: check snd_ctl_n…nvd · 2026-07-25
unknownCVE-2026-64487: In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix out-of-bo…nvd · 2026-07-25
unknownCVE-2026-64486: In the Linux kernel, the following vulnerability has been resolved: ALSA: cmipci: check snd_ct…nvd · 2026-07-25