CVSS: v3.1: 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
The vulnerability CVE-2025-26466 has been resolved in Juniper Networks CTPView 9.3R2 release by updating third party software included with CTPView.A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.This issue affects CTPView versions prior to 9.3R2.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was discovered by a third-party upstream provider.
The following software releases have been updated to resolve this specific issue: CTPview 9.3R2, and all subsequent releases.
This issue is being tracked as 1867535 which is visible on the Customer Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).
There are no known workarounds for this issue.
To reduce the risk of exploitation use access lists or firewall filters to limit access to the device only from trusted, administrative networks or hosts.
2025-07-09: Initial Publication