CVE-2025-68783
Vulnerability Scoring
Analysis In Progress
CVE-2025-68783 Vulnerability Analysis & Exploit Details
CVE-2025-68783
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-2025-68783 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-2025-68783 Vulnerability Summary
CVE-2025-68783: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-mixer: us16x08: validate meter packet indices get_meter_levels_from_urb() parses the 64-byte meter packets sent by the device and fills the per-channel arrays meter_level[], comp_level[] and master_level[] in struct snd_us16x08_meter_store. Currently the function derives the channel index directly from the meter packet (MUB2(meter_urb, s) - 1) and uses it to index those arrays without validating the range. If the packet contains a negative or out-of-range channel number, the driver may write past the end of these arrays. Introduce a local channel variable and validate it before updating the arrays. We reject negative indices, limit meter_level[] and comp_level[] to SND_US16X08_MAX_CHANNELS, and guard master_level[] updates with ARRAY_SIZE(master_level).
Assessing the Risk of CVE-2025-68783
Access Complexity Graph
The exploitability of CVE-2025-68783 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-2025-68783
No exploitability data is available for CVE-2025-68783.
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-2025-68783, 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-2025-68783, 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-2025-68783 does not compromise confidentiality.
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Integrity:
None
CVE-2025-68783 does not impact data integrity.
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Availability:
None
CVE-2025-68783 does not affect system availability.
CVE-2025-68783 References
External References
- https://git.kernel.org/stable/c/2168866396bd28ec4f3c8da0fbc7d08b5bd4f053
- https://git.kernel.org/stable/c/2f21a7cbaaa93926f5be15bc095b9c57c35748d9
- https://git.kernel.org/stable/c/53461710a95e15ac1f6542450943a492ecf8e550
- https://git.kernel.org/stable/c/5526c1c6ba1d0913c7dfcbbd6fe1744ea7c55f1e
- https://git.kernel.org/stable/c/a8ad320efb663be30b794e3dd3e829301c0d0ed3
- https://git.kernel.org/stable/c/cde47f4ccad6751ac36b7471572ddf38ee91870c
- https://git.kernel.org/stable/c/eaa95228b8a56c4880a182c0350d67922b22408f
CWE Common Weakness Enumeration
Unknown
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