CVE-2026-74623: net: atlantic: free stranded TX buffers on ring deinit

mediumCVSS 4.4CVE-2026-74623

CSIRTS triage

vendor: Linux product: Linux Denial of service Memory corruption

What: Atlantic network driver leaks TX buffers during ring deinitialization.
Who is affected: Linux systems using Marvell Atlantic network adapters.
Urgency: Low; CVSS 4.4 but memory leak can degrade performance over time.
Action: Apply kernel patch or upgrade to a version with Atlantic TX buffer cleanup fix.

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 4.4
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-74623

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-2026-746230.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-74623	coverage & exploitation status	NVD · CVE.org

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