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7.0
Red Hat Linux Kernel Patch Update Exposes Systems to Privilege Escalation
RHSA-2026:3987
Summary
A security patch for Red Hat's Linux kernel is available to fix a potential issue that could allow an attacker to gain elevated privileges on a system. This update is recommended to prevent unauthorized access. To stay secure, apply the patch and update the kernel as soon as possible.
What to do
- Update redhat kpatch-patch-5_14_0-611_9_1 to version 0:1-3.el9_7.
- Update redhat kpatch-patch-5_14_0-611_9_1-debuginfo to version 0:1-3.el9_7.
- Update redhat kpatch-patch-5_14_0-611_9_1-debugsource to version 0:1-3.el9_7.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| redhat | kpatch-patch-5_14_0-611_9_1 | <= 0:1-3.el9_7 | 0:1-3.el9_7 |
| redhat | kpatch-patch-5_14_0-611_9_1-debuginfo | <= 0:1-3.el9_7 | 0:1-3.el9_7 |
| redhat | kpatch-patch-5_14_0-611_9_1-debugsource | <= 0:1-3.el9_7 | 0:1-3.el9_7 |
Original title
Red Hat Security Advisory: kpatch-patch-5_14_0-611_9_1 security update
osv CVSS3.1
7.0
- https://access.redhat.com/errata/RHSA-2026:3987 Vendor Advisory
- https://access.redhat.com/security/updates/classification/#important Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2418872 Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3987.j... Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2025-40248 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2025-40248 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-40248 Vendor Advisory
- https://lore.kernel.org/linux-cve-announce/2025120430-CVE-2025-40248-506e@gregkh... Third Party Advisory
Published: 9 Mar 2026 · Updated: 13 Mar 2026 · First seen: 9 Mar 2026