CVE-2026-64269: RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CSIRTS triage
- What
- The RDMA/rtrs-srv service needs to bound RDMA-Write length to chunk size in the rdma_write_sg function.
- Who is affected
- Deployments using RDMA/rtrs-srv are affected.
- Urgency
- Remediation is necessary to prevent potential issues, although exploitation status is currently unknown.
- Action
- Apply the fix for CVE-2026-64269.
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-2026-64269
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-2026-642690.68% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-64269 | coverage & exploitation status | NVD · CVE.org |
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