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CVE-2026-64483: ALSA: firewire: isight: bound the sample count to the packet payload

highCVSS 7.8CVE-2026-64483

CSIRTS triage

What
A vulnerability in ALSA allows for bounding the sample count to the packet payload.
Who is affected
Users of ALSA with the affected firewire isight functionality.
Urgency
Remediation is medium urgency as it addresses a potential issue.
Action
Update ALSA to the latest version to mitigate this vulnerability.

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

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64483

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-64483coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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.

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