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CVE-2026-81384
Heap buffer overflow in Microsoft DNS Server
- CVSS 3.1
- 8.1 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A heap-based buffer overflow in Microsoft DNS Server lets an unauthorized attacker run code over the network. No authentication or user interaction is required, but exploitation is high complexity. Successful attack can fully compromise confidentiality, integrity, and availability of the server. Microsoft has not listed affected builds.
What to do: Apply Microsoft's update for CVE-2026-81384. Microsoft has not listed a fixed version or workaround.
| Product | Affected |
|---|---|
| Microsoft DNS Server | — |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.
- Weakness
- CWE-122
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H