CVE-2026-64486: ALSA: cmipci: check snd_ctl_new1() return value

mediumCVSS 5.5CVE-2026-64486

CSIRTS triage

vendor: Linux product: KernelOther

What: The snd_ctl_new1() return value is not properly checked, which may lead to issues.
Who is affected: Deployments of the Linux kernel with ALSA support.
Urgency: Remediation is advisable to prevent potential instability, with no known exploits currently.
Action: Update to the latest kernel version that includes the fix.

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

⚡ Watch Kernel

Get an email when a new Kernel advisory drops — max one per day, one-click unsubscribe.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64486

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-2026-644860.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64486	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2026-64486: In the Linux kernel, the following vulnerability has been resolved: ALSA: cmipci: check snd_ct…nvd

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