CVE-2026-53369
Vulnerability Scoring
Analysis In Progress
CVE-2026-53369 Vulnerability Analysis & Exploit Details
CVE-2026-53369
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-2026-53369 Details
Status: Received on 19 Jul 2026, 09:17 UTC
Published on: 19 Jul 2026, 09:17 UTC
CVSS Release:
CVE-2026-53369 Vulnerability Summary
CVE-2026-53369: In the Linux kernel, the following vulnerability has been resolved: udf: reject descriptors with oversized CRC length udf_read_tagged() skips CRC verification when descCRCLength + sizeof(struct tag) exceeds the block size. A crafted UDF image can set descCRCLength to an oversized value to bypass CRC validation entirely; the descriptor is then accepted based solely on the 8-bit tag checksum, which is trivially recomputable. Reject such descriptors instead of silently accepting them. A legitimate single-block descriptor should never have a CRC length that exceeds the block.
Assessing the Risk of CVE-2026-53369
Access Complexity Graph
The exploitability of CVE-2026-53369 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-2026-53369
No exploitability data is available for CVE-2026-53369.
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-2026-53369, 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-2026-53369, 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-2026-53369 does not compromise confidentiality.
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Integrity:
None
CVE-2026-53369 does not impact data integrity.
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Availability:
None
CVE-2026-53369 does not affect system availability.
CVE-2026-53369 References
External References
- https://git.kernel.org/stable/c/1873eb81c65d3f849418d7386baa39c439c9fc38
- https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98
- https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99
- https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6
- https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7
- https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770
- https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22
- https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2
CWE Common Weakness Enumeration
Unknown
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