CVE-2025-21727
linuxVulnerabilityCVSS 7.8Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 7.8 HIGH
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Ubuntu:Pro:16.04:LTS | linux | - | 4.4.0-276.310 | fixed |
| Ubuntu:Pro:18.04:LTS | linux | - | 4.15.0-245.257 | fixed |
| Ubuntu:Pro:20.04:LTS | linux | - | 5.4.0-223.243 | fixed |
| Ubuntu:Pro:22.04:LTS | linux | - | 5.15.0-156.166 | fixed |
| Ubuntu:Pro:24.04:LTS | linux | - | 6.8.0-87.88 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | - | 6.4.0-150600.23.47.2.150600.12.20.2 | fixed |
| openSUSE:Leap 15.6 | kernel-default-base | - | 6.4.0-150600.23.47.2.150600.12.20.2 | fixed |
| SUSE:Linux Micro 6.0 | kernel-default-base | - | 6.4.0-28.1.21.6 | fixed |
| SUSE:Linux Micro 6.1 | kernel-default-base | - | 6.4.0-28.1.21.6 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| SUSE:Linux Enterprise Module for Legacy 15 SP6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| SUSE:Linux Enterprise High Availability Extension 15 SP6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| SUSE:Linux Enterprise Workstation Extension 15 SP6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| openSUSE:Leap 15.6 | kernel-default | - | 6.4.0-150600.23.47.2 | fixed |
| Red Hat:enterprise_linux:8::baseos | kernel | - | 0:4.18.0-240.el8 | fixed |