libssh2 out of bounds write Vulnerability - 20260629001¶
Overview¶
A critical libssh2 vulnerability has been identified that allows remote attackers to execute arbitrary code via crafted SSH packets.
What is vulnerable?¶
| Product(s) Affected | Version(s) | CVE | CVSS | Severity |
|---|---|---|---|---|
| libssh2 | 1.11.1 and earlier | CVE-2026-55200 | 9.8 | Critical |
What has been observed?¶
The WASOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.
Recommendation¶
The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):