Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-8ve7-b7xm-cfd3
Vulnerability ID VCID-8ve7-b7xm-cfd3
Aliases CVE-2025-21658
Summary kernel: btrfs: avoid NULL pointer dereference if no valid extent tree
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21658.json
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2025-21658
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2025-21658
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2025-21658
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 5.5 https://git.kernel.org/stable/c/24b85a8b0310e0144da9ab30be42e87e6476638a
ssvc Track https://git.kernel.org/stable/c/24b85a8b0310e0144da9ab30be42e87e6476638a
cvssv3.1 5.5 https://git.kernel.org/stable/c/6aecd91a5c5b68939cf4169e32bc49f3cd2dd329
ssvc Track https://git.kernel.org/stable/c/6aecd91a5c5b68939cf4169e32bc49f3cd2dd329
cvssv3.1 5.5 https://git.kernel.org/stable/c/aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784
ssvc Track https://git.kernel.org/stable/c/aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21658.json
https://api.first.org/data/v1/epss?cve=CVE-2025-21658
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2339123 https://bugzilla.redhat.com/show_bug.cgi?id=2339123
24b85a8b0310e0144da9ab30be42e87e6476638a https://git.kernel.org/stable/c/24b85a8b0310e0144da9ab30be42e87e6476638a
6aecd91a5c5b68939cf4169e32bc49f3cd2dd329 https://git.kernel.org/stable/c/6aecd91a5c5b68939cf4169e32bc49f3cd2dd329
aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784 https://git.kernel.org/stable/c/aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784
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:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21658.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:L/PR:L/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/24b85a8b0310e0144da9ab30be42e87e6476638a
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/2025-10-01T19:52:37Z/ Found at https://git.kernel.org/stable/c/24b85a8b0310e0144da9ab30be42e87e6476638a
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/6aecd91a5c5b68939cf4169e32bc49f3cd2dd329
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/2025-10-01T19:52:37Z/ Found at https://git.kernel.org/stable/c/6aecd91a5c5b68939cf4169e32bc49f3cd2dd329
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/aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784
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/2025-10-01T19:52:37Z/ Found at https://git.kernel.org/stable/c/aee5f69f3e6cd82bfefaca1b70b40b6cd8f3f784
Exploit Prediction Scoring System (EPSS)
Percentile 0.04405
EPSS Score 0.00017
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:49:41.626448+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21658.json 38.6.0