What is CVE-2026-53239?

CVE-2026-53239 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()

Which CVE IDs does CVE-2026-53239 cover?

CVE-2026-53239 covers the following CVE IDs: CVE-2026-53239. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-53239?

CVE-2026-53239 has a CVSS v3 base score of 7.0, published by Microsoft Security Response Center (MSRC).

CVE-2026-53239MediumCVSS 7.0

xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()

Vendor

Microsoft Security Response Center (MSRC)

Published

June 30, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-53239 →