PatchTheCVECVE-2026-76658: A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an un
CVE-2026-76658 is a critical-severity flaw (CVSS 10.0) affecting fabric composer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain administrative access to vulnerable AFC hosts. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system leading to complete system compromise.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 10.0 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 45%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2026-09-01 |
| Last modified | 2026-09-02 |
Last updated 2026-09-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-76658?
fabric composer: upgrade to newer than 7.3.3. Exact commands for each OS are on this page.
Is CVE-2026-76658 being exploited?
CVE-2026-76658 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-76658 affect?
CVE-2026-76658 affects fabric composer. Severity is critical (CVSS 10.0). A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain administrative access to vulnerable AFC hosts. Successful exploitation could allow an attack
How urgent is CVE-2026-76658?
Priority 54/100. Critical severity; Remotely exploitable, no login, no user action
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