CVE-2025-68788
Vulnerability Scoring
Analysis In Progress
CVE-2025-68788 Vulnerability Analysis & Exploit Details
CVE-2025-68788
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2025-68788 Details
Status: Awaiting Analysis
Last updated: 🕐 19 Jan 2026, 13:16 UTC
Originally published on: 🕓 13 Jan 2026, 16:15 UTC
Time between publication and last update: 5 days
CVSS Release:
CVE-2025-68788 Vulnerability Summary
CVE-2025-68788: In the Linux kernel, the following vulnerability has been resolved: fsnotify: do not generate ACCESS/MODIFY events on child for special files inotify/fanotify do not allow users with no read access to a file to subscribe to events (e.g. IN_ACCESS/IN_MODIFY), but they do allow the same user to subscribe for watching events on children when the user has access to the parent directory (e.g. /dev). Users with no read access to a file but with read access to its parent directory can still stat the file and see if it was accessed/modified via atime/mtime change. The same is not true for special files (e.g. /dev/null). Users will not generally observe atime/mtime changes when other users read/write to special files, only when someone sets atime/mtime via utimensat(). Align fsnotify events with this stat behavior and do not generate ACCESS/MODIFY events to parent watchers on read/write of special files. The events are still generated to parent watchers on utimensat(). This closes some side-channels that could be possibly used for information exfiltration [1]. [1] https://snee.la/pdf/pubs/file-notification-attacks.pdf
Assessing the Risk of CVE-2025-68788
Access Complexity Graph
The exploitability of CVE-2025-68788 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2025-68788
No exploitability data is available for CVE-2025-68788.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2025-68788, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2025-68788, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2025-68788 does not compromise confidentiality.
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Integrity:
None
CVE-2025-68788 does not impact data integrity.
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Availability:
None
CVE-2025-68788 does not affect system availability.
CVE-2025-68788 References
External References
- https://git.kernel.org/stable/c/635bc4def026a24e071436f4f356ea08c0eed6ff
- https://git.kernel.org/stable/c/6a7d7d96eeeab7af2bd01afbb3d9878a11a13d91
- https://git.kernel.org/stable/c/7a93edb23bcf07a3aaf8b598edfc2faa8fbcc0b6
- https://git.kernel.org/stable/c/82f7416bcbd951549e758d15fc1a96a5afc2e900
- https://git.kernel.org/stable/c/859bdf438f01d9aa7f84b09c1202d548c7cad9e8
- https://git.kernel.org/stable/c/df2711544b050aba703e6da418c53c7dc5d443ca
- https://git.kernel.org/stable/c/e0643d46759db8b84c0504a676043e5e341b6c81
CWE Common Weakness Enumeration
Unknown
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