CVE-2026-53229: net/mlx5e: xsk: Fix DMA and xdp_frame leak on XDP_TX xmit failure

mediumCVSS 5.5CVE-2026-53229

CSIRTS triage

vendor: null product: nullOther

What: There is a DMA and xdp_frame leak on XDP_TX transmission failure.
Who is affected: Deployments using net/mlx5e.
Urgency: Remediation is medium urgency due to the medium severity of the issue.
Action: Apply the fix for CVE-2026-53229.

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: 2026-06-09
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53229

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-2026-532290.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53229	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownMultiple vulnerabilities in SUSE Linux kernel (July 31, 2026)cert-fr-avis
unknownMultiple vulnerabilities in SUSE Linux kernel (July 24, 2026)cert-fr-avis

Recent advisories for net/mlx5e

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.

unknownCVE-2026-74698: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix BQL reset o…nvd · 2026-08-22
highCVE-2026-72344: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, skip peer f…nvd · 2026-08-15
highCVE-2026-72343: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix HV VHCA sta…nvd · 2026-08-15
highCVE-2026-72342: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix HV VHCA sta…nvd · 2026-08-15
unknownCVE-2026-72341: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix publication…nvd · 2026-08-15
highCVE-2026-72072: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: macsec: fix use…nvd · 2026-08-15