CVE-2025-21714: RDMA/mlx5: Fix implicit ODP use after free
CSIRTS triage
- What
- Use-after-free vulnerability in RDMA/mlx5 implicit ODP (On-Demand Paging) handling.
- Who is affected
- Systems using Mellanox ConnectX RDMA devices with implicit ODP enabled.
- Urgency
- High severity (CVSS 7.8); use-after-free can lead to memory corruption and potential code execution.
- Action
- Update kernel with RDMA/mlx5 fix that properly manages ODP memory lifecycle.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21714
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-217140.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-21714 | coverage & exploitation status | NVD · CVE.org |
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