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Vulnerability details: VCID-123n-sr2p-dugq
Vulnerability ID VCID-123n-sr2p-dugq
Aliases CVE-2025-21634
Summary kernel: cgroup/cpuset: remove kernfs active break
Status Published
Exploitability 0.5
Weighted Severity 4.4
Risk 2.2
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-99 Improper Control of Resource Identifiers ('Resource Injection')
System Score Found at
cvssv3 3.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21634.json
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2025-21634
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2025-21634
epss 0.00015 https://api.first.org/data/v1/epss?cve=CVE-2025-21634
cvssv3.1 4.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 5.5 https://git.kernel.org/stable/c/11cb1d643a74665a4e14749414f48f82cbc15c64
ssvc Track https://git.kernel.org/stable/c/11cb1d643a74665a4e14749414f48f82cbc15c64
cvssv3.1 5.5 https://git.kernel.org/stable/c/3cb97a927fffe443e1e7e8eddbfebfdb062e86ed
ssvc Track https://git.kernel.org/stable/c/3cb97a927fffe443e1e7e8eddbfebfdb062e86ed
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21634.json
https://api.first.org/data/v1/epss?cve=CVE-2025-21634
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21634
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
11cb1d643a74665a4e14749414f48f82cbc15c64 https://git.kernel.org/stable/c/11cb1d643a74665a4e14749414f48f82cbc15c64
2338822 https://bugzilla.redhat.com/show_bug.cgi?id=2338822
3cb97a927fffe443e1e7e8eddbfebfdb062e86ed https://git.kernel.org/stable/c/3cb97a927fffe443e1e7e8eddbfebfdb062e86ed
USN-7379-1 https://usn.ubuntu.com/7379-1/
USN-7379-2 https://usn.ubuntu.com/7379-2/
USN-7380-1 https://usn.ubuntu.com/7380-1/
USN-7381-1 https://usn.ubuntu.com/7381-1/
USN-7382-1 https://usn.ubuntu.com/7382-1/
USN-7513-1 https://usn.ubuntu.com/7513-1/
USN-7513-2 https://usn.ubuntu.com/7513-2/
USN-7513-3 https://usn.ubuntu.com/7513-3/
USN-7513-4 https://usn.ubuntu.com/7513-4/
USN-7513-5 https://usn.ubuntu.com/7513-5/
USN-7514-1 https://usn.ubuntu.com/7514-1/
USN-7515-1 https://usn.ubuntu.com/7515-1/
USN-7515-2 https://usn.ubuntu.com/7515-2/
USN-7522-1 https://usn.ubuntu.com/7522-1/
USN-7523-1 https://usn.ubuntu.com/7523-1/
USN-7524-1 https://usn.ubuntu.com/7524-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21634.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://git.kernel.org/stable/c/11cb1d643a74665a4e14749414f48f82cbc15c64
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-01T19:54:20Z/ Found at https://git.kernel.org/stable/c/11cb1d643a74665a4e14749414f48f82cbc15c64
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://git.kernel.org/stable/c/3cb97a927fffe443e1e7e8eddbfebfdb062e86ed
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-10-01T19:54:20Z/ Found at https://git.kernel.org/stable/c/3cb97a927fffe443e1e7e8eddbfebfdb062e86ed
Exploit Prediction Scoring System (EPSS)
Percentile 0.03253
EPSS Score 0.00015
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:49:43.989059+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21634.json 38.6.0