Microsoft security update for CVE-2025-8277
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-8277. This page also shows what EchelonGraph holds for CVE-2025-8277, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products5
- azl3 libssh 0.10.6-3 on Azure Linux 3.0
- azl3 libssh 0.10.6-4 on Azure Linux 3.0
- cbl2 libssh 0.10.6-2 on CBL Mariner 2.0
- cbl2 libssh 0.10.6-3 on CBL Mariner 2.0
- cbl2 libssh 0.10.6-5 on CBL Mariner 2.0
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 0.10.6-4 |
| — | Security Update | 0.10.6-5 |
🧭 EchelonGraph on CVE-2025-8277
- EchelonGraph score
- 3.1 LOW
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
A flaw was found in libssh's handling of key exchange (KEX) processes when a client repeatedly sends incorrect KEX guesses. The library fails to free memory during these rekey operations, which can gradually exhaust system memory. This issue can lead to crashes on the client side, particularly when using libgcrypt, which impacts application stability and availability.
Published by Red Hat, Inc., the CVE Numbering Authority that assigned CVE-2025-8277, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).