CVE-2026-53156: nvmem: core: fix use-after-free bugs in error paths

mediumCVSS 5.5CVE-2026-53156

CSIRTS triage

Other

What: Use-after-free bugs in nvmem error paths.
Who is affected: Systems utilizing nvmem functionalities.
Urgency: Remediation is medium priority due to moderate severity.
Action: Update nvmem components to resolve use-after-free issues.

AI-assisted analysis generated from the source advisory — verify against the original.

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-2026-53156

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-2026-531560.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-53156	coverage & exploitation status	NVD · CVE.org

Recent advisories for nvmem

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-2026-53336: nvmem: layouts: onie-tlv: fix hang on unknown typesmsrc · 2026-07-02
unknownCVE-2026-53336: In the Linux kernel, the following vulnerability has been resolved: nvmem: layouts: onie-tlv: …nvd · 2026-07-01