CVE-2025-37920: xsk: Fix race condition in AF_XDP generic RX path

mediumCVSS 5.5CVE-2025-37920

CSIRTS triage

product: Linux kernel AF_XDP Denial of service Memory corruption

What: A race condition in the AF_XDP generic RX path can cause memory corruption or denial of service.
Who is affected: Systems using Linux kernel AF_XDP sockets for packet processing.
Urgency: Medium severity (CVSS 5.5); race condition allowing denial of service or corruption, not currently exploited.
Action: Apply Linux kernel patch synchronizing the AF_XDP generic RX path.

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

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-37920

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-2025-379200.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-37920	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund

Recent advisories for xsk

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