VDB
RHSA-2026%3A1148
RHSA-2026%3A1148
PUBLISHED
CVSS 7.800000190734863 HIGH
Record from OSV · Published January 26, 2026
Red Hat Security Advisory: kernel-rt security update
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| kernel-rt-modules | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debug-core | Red Hat:enterprise_linux:8::realtime | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-core | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-modules-extra | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debuginfo-common-x86_64 | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debug | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debuginfo | Red Hat:enterprise_linux:8::realtime | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debuginfo-common-x86_64 | Red Hat:enterprise_linux:8::realtime | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-core | Red Hat:enterprise_linux:8::realtime | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-debug-debuginfo | Red Hat:enterprise_linux:8::nfv | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
| kernel-rt-kvm | Red Hat:enterprise_linux:8::realtime | 4.18.0-553.97.1.rt7.438.el8, 0:4.18.0-553.97.1.rt7.438.el8_10 |
18 more packages have a fixed version. See every fix in Lookup.
Risk scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat:enterprise_linux:8::nfv | kernel-rt-modules | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debug-core | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-core | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-modules-extra | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-debuginfo-common-x86_64 | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-debug | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debuginfo | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debuginfo-common-x86_64 | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-core | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-debug-debuginfo | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-kvm | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-modules | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-modules-extra | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debug-devel | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-debug-modules-extra | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debug-debuginfo | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debug | 0, 0 |
| Red Hat:enterprise_linux:8::realtime | kernel-rt-debug-modules | 0, 0 |
| Red Hat:enterprise_linux:8::nfv | kernel-rt-debuginfo | 0, 0 |
…and 10 more
Timeline
- Jan 26, 2026 CVE Published
- Mar 18, 2026 CVE Updated
- May 1, 2026 Security Advisory (5 in total, the first dated here)
- May 19, 2026 Distribution Patch (2 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln RHSA-2026%3A1148
vulnetix vdb fixes RHSA-2026%3A1148Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/RHSA-2026%253A1148/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2402193 report
- https://bugzilla.redhat.com/show_bug.cgi?id=2414494 report
- https://bugzilla.redhat.com/show_bug.cgi?id=2419954 report
- https://nvd.nist.gov/vuln/detail/CVE-2023-53673 advisory
- https://lore.kernel.org/linux-cve-announce/2025100706-CVE-2023-53673-36b9@gregkh/T article
- https://lore.kernel.org/linux-cve-announce/2025111258-CVE-2025-40154-fd98@gregkh/T article
- https://access.redhat.com/security/cve/CVE-2025-40248 report
- https://www.cve.org/CVERecord?id=CVE-2025-40277 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-40277 advisory
- https://access.redhat.com/security/cve/CVE-2025-40154 report
- https://access.redhat.com/errata/RHSA-2026:1148 advisory
- https://access.redhat.com/security/updates/classification/#important article
- https://bugzilla.redhat.com/show_bug.cgi?id=2418872 report
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1148.json advisory
- https://access.redhat.com/security/cve/CVE-2023-53673 report
- https://www.cve.org/CVERecord?id=CVE-2023-53673 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-40154 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-40154 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-40248 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-40248 advisory
…and 3 more