What is RHSA-2026:3964?

RHSA-2026:3964 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: kernel-rt security update

Which CVE IDs does RHSA-2026:3964 cover?

RHSA-2026:3964 covers the following CVE IDs: CVE-2026-23001, CVE-2025-71085. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:3964?

RHSA-2026:3964 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:3964MediumCVSS 7.8

Red Hat Security Advisory: kernel-rt security update

Vendor

Red Hat Product Security

Published

March 9, 2026

Last Modified

June 25, 2026

🔗 CVE IDs covered (2)

CVE-2026-23001 →CVE-2025-71085 →

📋 Description

CVE-2025-71085 — kernel: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() CVE-2026-23001 — kernel: macvlan: fix possible UAF in macvlan_forward_source()

🔗 References (5)

selfhttps://access.redhat.com/errata/RHSA-2026:3964
externalhttps://access.redhat.com/security/updates/classification/#moderate
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429026
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2432664
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3964.json