CVE-2025-21892
CSIRTS triage
- What
- The RDMA mlx5 driver has a defect in the recovery flow of the UMR queue pair.
- Who is affected
- Systems using Mellanox RDMA hardware with the mlx5 driver.
- Urgency
- Medium severity (CVSS 4.7) with moderate impact to RDMA reliability.
- Action
- Apply the Linux kernel patch that fixes the UMR QP recovery flow.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2025-21892: RDMA/mlx5: Fix the recovery flow of the UMR QPmsrc · 2026-08-06
External references
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