CVE-2026-74622: net: atlantic: free RX pages of consumed but not refilled buffers

mediumCVSS 4.4CVE-2026-74622

CSIRTS triage

vendor: Linux product: Linux Kernel Memory corruption

What: Memory leak in the Aquantia atlantic network driver where RX pages are not freed when buffers are consumed but not refilled.
Who is affected: Systems using Aquantia atlantic network adapters on vulnerable kernel versions.
Urgency: Medium urgency; not currently exploited but memory leaks can cause resource exhaustion.
Action: Apply kernel patch ensuring RX pages are freed for consumed but unrefilled buffers in the atlantic driver.

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-2026-74622

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-2026-746220.18% 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-2026-74622	coverage & exploitation status	NVD · CVE.org

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