CVE-2026-52975: bonding: 3ad: implement proper RCU rules for port->aggregator

mediumCVSS 5.5CVE-2026-52975

CSIRTS triage

product: bondingOther

What: This vulnerability involves improper implementation of RCU rules for port->aggregator.
Who is affected: Deployments using the affected bonding implementation.
Urgency: Remediation is important due to medium severity and potential exploitation.
Action: Apply the fix as soon as it is available.

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-2026-52975

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-2026-529750.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-52975	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 Microsoft Azure Linux (July 10, 2026)cert-fr-avis
high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund
unknownDSA-6381-1 linux - security updatedebian

Recent advisories for bonding

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.

mediumCVE-2026-53337: net: bonding: fix NULL pointer dereference in bond_do_ioctl()msrc · 2026-07-02
unknownCVE-2026-53337: In the Linux kernel, the following vulnerability has been resolved: net: bonding: fix NULL poi…nvd · 2026-07-01