PatchTheCVECVE-2018-5493: ATTO FibreBridge 7500N firmware versions prior to 2.90 are susceptible to a vulnerability which allows an unau
CVE-2018-5493 is a high-severity flaw (CVSS 7.5) affecting fibrebridge 7500n firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ATTO FibreBridge 7500N firmware versions prior to 2.90 are susceptible to a vulnerability which allows an unauthenticated remote attacker to cause Denial of Service (DoS).
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.8% (top 21%) |
| CISA exploited list | No |
| Published | 2020-05-07 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · 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-2018-5493?
fibrebridge 7500n firmware: upgrade to 2.90. Exact commands for each OS are on this page.
Is CVE-2018-5493 being exploited?
CVE-2018-5493 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-2018-5493 affect?
CVE-2018-5493 affects fibrebridge 7500n firmware. Severity is high (CVSS 7.5). ATTO FibreBridge 7500N firmware versions prior to 2.90 are susceptible to a vulnerability which allows an unauthenticated remote attacker to cause Denial of Service (DoS).
How urgent is CVE-2018-5493?
Priority 51/100. High severity; Remotely exploitable, no login, no user action