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RHSA-2026:3866
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Source
https://access.redhat.com/errata/RHSA-2026:3866
Import Source
https://security.access.redhat.com/data/osv/RHSA-2026:3866.json
JSON Data
https://api.osv.dev/v1/vulns/RHSA-2026:3866
Upstream
CVE-2025-40248
Published
2026-03-06T10:13:23Z
Modified
2026-03-09T10:07:56Z
Severity
7.0 (High)
CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Calculator
Summary
Red Hat Security Advisory: kpatch-patch-4_18_0-372_131_1, kpatch-patch-4_18_0-372_137_1, kpatch-patch-4_18_0-372_145_1, kpatch-patch-4_18_0-372_158_1, and kpatch-patch-4_18_0-372_170_1 security update
Details
References
https://access.redhat.com/errata/RHSA-2026:3866
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2418872
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3866.json
https://access.redhat.com/security/cve/CVE-2025-40248
https://www.cve.org/CVERecord?id=CVE-2025-40248
https://nvd.nist.gov/vuln/detail/CVE-2025-40248
https://lore.kernel.org/linux-cve-announce/2025120430-CVE-2025-40248-506e@gregkh/T
Affected packages
Red Hat:rhel_e4s:8.6::baseos
kpatch-patch-4_18_0-372_131_1
Package
Name
kpatch-patch-4_18_0-372_131_1
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_131_1
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-12.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_131_1-debuginfo
Package
Name
kpatch-patch-4_18_0-372_131_1-debuginfo
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_131_1-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-12.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_131_1-debugsource
Package
Name
kpatch-patch-4_18_0-372_131_1-debugsource
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_131_1-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-12.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_137_1
Package
Name
kpatch-patch-4_18_0-372_137_1
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_137_1
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-9.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_137_1-debuginfo
Package
Name
kpatch-patch-4_18_0-372_137_1-debuginfo
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_137_1-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-9.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_137_1-debugsource
Package
Name
kpatch-patch-4_18_0-372_137_1-debugsource
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_137_1-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-9.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_145_1
Package
Name
kpatch-patch-4_18_0-372_145_1
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_145_1
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-7.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_145_1-debuginfo
Package
Name
kpatch-patch-4_18_0-372_145_1-debuginfo
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_145_1-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-7.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_145_1-debugsource
Package
Name
kpatch-patch-4_18_0-372_145_1-debugsource
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_145_1-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-7.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_158_1
Package
Name
kpatch-patch-4_18_0-372_158_1
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_158_1
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-3.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_158_1-debuginfo
Package
Name
kpatch-patch-4_18_0-372_158_1-debuginfo
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_158_1-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-3.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_158_1-debugsource
Package
Name
kpatch-patch-4_18_0-372_158_1-debugsource
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_158_1-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-3.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_170_1
Package
Name
kpatch-patch-4_18_0-372_170_1
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_170_1
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-2.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_170_1-debuginfo
Package
Name
kpatch-patch-4_18_0-372_170_1-debuginfo
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_170_1-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-2.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
kpatch-patch-4_18_0-372_170_1-debugsource
Package
Name
kpatch-patch-4_18_0-372_170_1-debugsource
Purl
pkg:rpm/redhat/kpatch-patch-4_18_0-372_170_1-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1-2.el8_6
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:3866.json"
RHSA-2026:3866 - OSV