CVE-2024-57893: ALSA: seq: oss: Fix races at processing SysEx messages

mediumCVSS 6.3CVE-2024-57893

CSIRTS triage

vendor: Linux product: kernel Memory corruption

What: A race condition in ALSA sequencer OSS subsystem when processing SysEx messages can lead to memory corruption.
Who is affected: Linux systems using ALSA sequencer OSS interface, all affected kernel versions.
Urgency: Medium severity (CVSS 6.3) and not exploited; race conditions are difficult to exploit reliably but create memory safety risk.
Action: Apply kernel patches fixing race conditions in ALSA seq_oss SysEx message handling.

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 6.3
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-57893

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-2024-578930.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-57893	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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