Disclosure summary
OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.
Source-reported weakness categories
CWE-670
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Apr
Open original source · Updated Sep 24, 2026
OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 3.1
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 openssh 9.8p1-6 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 openssh 8.9p1-9 on CBL-Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 openssh 9.8p1-5 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 openssh 8.9p1-9 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 openssh 9.8p1-8 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 9.8p1-8 · product IDs 21261-17084, 21499-17084
- Vendor guidance · product IDs 21261-17084, 21499-17084
- Release Notes · product IDs 20608-21692
- Vendor guidance · product IDs 20608-21692
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-03T21:02:26-04:00
MODIFIED 2026-09-24T22:29:07-04:00
INGESTED 2026-10-08T12:45:03-04:00