CVE-2026-53199: hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf
CSIRTS triage
- What
- The vulnerability involves using kmap_local_page in netvsc_copy_to_send_buf.
- Who is affected
- Deployments using hv_netvsc may be affected.
- Urgency
- Remediation is medium urgency due to the severity rating of 5.5.
- Action
- Apply the necessary patches as they become available.
AI-assisted analysis generated from the source advisory — verify against the original.
Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53199
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-2026-531990.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-53199 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownMultiple vulnerabilities in Microsoft Azure Linux (June 29, 2026)cert-fr-avis
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