CVE-2026-63961
Vulnerability Scoring
Analysis In Progress
CVE-2026-63961 Vulnerability Analysis & Exploit Details
CVE-2026-63961
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-2026-63961 Details
Status: Received on 19 Jul 2026, 16:17 UTC
Last updated: 🕖 20 Jul 2026, 07:16 UTC
Originally published on: 🕓 19 Jul 2026, 16:17 UTC
CVSS Release:
CVE-2026-63961 Vulnerability Summary
CVE-2026-63961: In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: validate count before reading Status Update VDO A broken/malicious device can send the incorrect count for a status update VDO, which will cause the kernel to read uninitialized stack data and send it off elsewhere. Fix this up by correctly verifying the count for the update object.
Assessing the Risk of CVE-2026-63961
Access Complexity Graph
The exploitability of CVE-2026-63961 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-2026-63961
No exploitability data is available for CVE-2026-63961.
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-2026-63961, 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-2026-63961, 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-2026-63961 does not compromise confidentiality.
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Integrity:
None
CVE-2026-63961 does not impact data integrity.
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Availability:
None
CVE-2026-63961 does not affect system availability.
CVE-2026-63961 References
External References
- https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02
- https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c
- https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306
- https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb
- https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa
- https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60
- https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b
- https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f
CWE Common Weakness Enumeration
Unknown
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