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Vulnerability details: VCID-watw-4f4a-qyaz
Vulnerability ID VCID-watw-4f4a-qyaz
Aliases CVE-2025-40307
Summary kernel: exfat: validate cluster allocation bits of the allocation bitmap
Status Published
Exploitability 0.5
Weighted Severity 5.7
Risk 2.9
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input
System Score Found at
cvssv3 6.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-40307.json
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2025-40307
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2025-40307
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2025-40307
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2025-40307
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-40307.json
https://api.first.org/data/v1/epss?cve=CVE-2025-40307
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-40307
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2419844 https://bugzilla.redhat.com/show_bug.cgi?id=2419844
USN-8029-1 https://usn.ubuntu.com/8029-1/
USN-8029-2 https://usn.ubuntu.com/8029-2/
USN-8029-3 https://usn.ubuntu.com/8029-3/
USN-8030-1 https://usn.ubuntu.com/8030-1/
USN-8048-1 https://usn.ubuntu.com/8048-1/
USN-8095-1 https://usn.ubuntu.com/8095-1/
USN-8095-2 https://usn.ubuntu.com/8095-2/
USN-8095-3 https://usn.ubuntu.com/8095-3/
USN-8095-4 https://usn.ubuntu.com/8095-4/
USN-8095-5 https://usn.ubuntu.com/8095-5/
USN-8100-1 https://usn.ubuntu.com/8100-1/
USN-8125-1 https://usn.ubuntu.com/8125-1/
USN-8126-1 https://usn.ubuntu.com/8126-1/
USN-8165-1 https://usn.ubuntu.com/8165-1/
USN-8261-1 https://usn.ubuntu.com/8261-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-40307.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
Exploit Prediction Scoring System (EPSS)
Percentile 0.07039
EPSS Score 0.00024
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:37:51.434040+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-40307.json 38.6.0