CVE-2026-74725: enic: fix tx_hang_reset use-after-free on device removal

mediumCVSS 4.1CVE-2026-74725

CSIRTS triage

vendor: Cisco product: enic driver Memory corruption

What: The enic driver has a use-after-free vulnerability in tx_hang_reset during device removal.
Who is affected: Systems running affected Linux kernel versions with Cisco UCS enic network drivers.
Urgency: Medium severity (CVSS 4.1); not currently exploited but can cause system crash on device removal.
Action: Update to a patched Linux kernel version addressing CVE-2026-74725.

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 4.1
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-74725

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-2026-747250.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-74725	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

highCVE-2026-74725: In the Linux kernel, the following vulnerability has been resolved: enic: fix tx_hang_reset us…nvd

Recent advisories for enic

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.

highCVE-2026-74725: In the Linux kernel, the following vulnerability has been resolved: enic: fix tx_hang_reset us…nvd · 2026-08-22