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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade openssh | Aug 8, 2025 | Feb 28, 2025 |
| Apple Osx Openssh | — | Upgrade macOS to the latest version | May 13, 2025 | May 12, 2025 |
| Aruba Aos Cx | — | To address the vulnerabilities described above in the affected software branches, it is recommended to upgrade HPE Aruba Networking AOS-CX to one of the following versions (as applicable):
- AOS-CX 10.16.xxxx: AOS-CX 10.16.1006 and above
- AOS-CX 10.15.xxxx: AOS-CX 10.15.1030 and above
- AOS-CX 10.14.xxxx: AOS-CX 10.14.1060 and above
- AOS-CX 10.13.xxxx: AOS-CX 10.13.1101 and above
- AOS-CX 10.10.xxxx: AOS-CX 10.10.1170 and above
Software versions with resolution/fixes for the vulnerabilities covered above can be downloaded from the HPE Networking Support Portal at https://networkingsupport.hpe.com/home/
HPE Aruba Networking does not evaluate or patch software branches that have reached their End of Maintenance (EoM) milestone.
For more information about HPE Aruba Networking End of Life policy please visit: https://www.hpe.com/psnow/doc/a00143052enw | Nov 28, 2025 | Nov 18, 2025 |
| Debian | — | Upgrade openssh | Jul 23, 2026 | Jul 23, 2026 |
| Dell Idrac | — | Upgrade Dell iDRAC to the latest version | Sep 23, 2025 | Apr 8, 2025 |
| Fortinet Fortianalyzer | — | Upgrade FortiAnalyzer to 7.4.7Upgrade FortiAnalyzer to 7.2.11Upgrade FortiAnalyzer to 7.6.3Upgrade to the latest version of FortiAnalyzer | May 26, 2026 | Mar 11, 2025 |
| Fortinet Fortimanager | — | Upgrade FortiManager to 7.6.3Upgrade FortiManager to 7.4.7Upgrade FortiManager to 7.2.11Upgrade to the latest version of FortiManager | May 25, 2026 | Mar 11, 2025 |
| Fortinet Fortisandbox | — | Upgrade to the latest version of FortiSandboxUpgrade FortiSandbox to 4.4.8Upgrade FortiSandbox to 5.0.2 | Oct 1, 2026 | Mar 11, 2025 |
| Fortinet Fortiweb | — | Upgrade FortiWeb to 7.6.5Upgrade to the latest version of FortiWebUpgrade FortiWeb to 7.4.9 | Jun 30, 2026 | Mar 11, 2025 |
| Freebsd | — | Upgrade openssh-portable-gssapiUpgrade FreeBSDUpgrade openssh-portableUpgrade openssh-portable-hpn | Mar 10, 2025 | Feb 24, 2025 |
| Gentoo Linux | — | Upgrade net-misc/openssh. | Feb 20, 2025 | Feb 18, 2025 |
| Ibm Aix | — | Apply the fix or workaround for openssh_advisory18 | Mar 18, 2025 | Feb 28, 2025 |
| Openbsd Openssh | — | Upgrade to the latest version of OpenSSH | Mar 10, 2025 | Feb 28, 2025 |
| Suse | — | Upgrade openssh-serverUpgrade openssh-helpersUpgrade openssh-server-config-rootloginUpgrade openssh-clientsUpgrade openssh-fipsUpgrade opensshUpgrade openssh-askpass-gnomeUpgrade openssh-commonUpgrade openssh-server-config-disallow-rootloginUpgrade openssh-cavs | Feb 20, 2025 | Feb 18, 2025 |
| Ubuntu | — | Upgrade openssh-serverUpgrade openssh-client | Feb 20, 2025 | Feb 18, 2025 |
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