CVE-2026-80880
Vulnerability Scoring
Analysis In Progress
CVE-2026-80880 Vulnerability Analysis & Exploit Details
CVE-2026-80880
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-2026-80880 Details
Status: Received on 04 Sep 2026, 17:17 UTC
Published on: 04 Sep 2026, 17:17 UTC
CVSS Release:
CVE-2026-80880 Vulnerability Summary
CVE-2026-80880: In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Properly support implicit ODP rereg_mr Due to all the child mkeys in the implicit ODP configuration we cannot change anything in place for the parent mkey. Instead the whole thing needs to be rebuilt if any change is requested. If the user does not specify a translation then force the implicit values which will then fall through the logic into mlx5_ib_reg_user_mr() to allocate a completely new MR. Since implicit children were also touching the mr->pd, this removes another case where the access was racy.
Assessing the Risk of CVE-2026-80880
Access Complexity Graph
The exploitability of CVE-2026-80880 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-2026-80880
No exploitability data is available for CVE-2026-80880.
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-2026-80880, 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-2026-80880, 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-2026-80880 does not compromise confidentiality.
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Integrity:
None
CVE-2026-80880 does not impact data integrity.
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Availability:
None
CVE-2026-80880 does not affect system availability.
CVE-2026-80880 References
External References
- https://git.kernel.org/stable/c/5d02b9a2efd11d28d2a8feac7769686b1b871d9c
- https://git.kernel.org/stable/c/94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb
- https://git.kernel.org/stable/c/cbc9982c8573fb9e35040063aa78c8ebe768a1ff
- https://git.kernel.org/stable/c/d4f84bfa089fe71f775d25beb29303e844494c25
- https://git.kernel.org/stable/c/eb7cb798e563b3f3b3baeb9cc6f7455764267e50
- https://git.kernel.org/stable/c/ee7a8335069150c3f1893a697ab30bbeca00d796
- https://git.kernel.org/stable/c/ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69
CWE Common Weakness Enumeration
Unknown
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