Disclosure summary
In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
Source-reported weakness categories
CWE-416
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-Aug
Open original source · Updated Sep 12, 2026
In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 4.8
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 openssh 9.8p1-9 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 openssh 9.8p1-10 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Vendor guidance · build 9.8p1-10 · product IDs 21837-17084
- Vendor guidance · product IDs 21837-17084
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-08-14T14:46:07-04:00
MODIFIED 2026-09-12T21:47:35-04:00
INGESTED 2026-10-08T12:35:48-04:00