SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5493

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).

HIGH 7.5EPSS 1.83%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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).

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.83% probability · 79th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
atto/fibrebridge 7500n firmware
Source
security-alert@netapp.com
EPSS trend
0%3%5%27 October 2026: 1.83%27 October 202627 October 2026

EPSS 1.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.