CVE-2026-64487: ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser

mediumCVSS 5.5CVE-2026-64487

CSIRTS triage

vendor: Linux product: ALSA Memory corruption

What: A vulnerability in ALSA allows for an out-of-bounds read in the Traktor Kontrol S4 input parser.
Who is affected: Users of ALSA with the affected input parser.
Urgency: Remediation is medium urgency as it could lead to potential exploitation.
Action: Apply the latest patches for ALSA to fix this issue.

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 5.5
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64487

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-2026-644870.18% 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-2026-64487	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2026-64487: In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: fix out-of-bo…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