CVE-2018-6440 Information disclosure in Brocade Fabric OS

What is CVE-2018-6440?

CVE-2018-6440 is a critical vulnerability in Broadcom Fabric Operating System, published on 3 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the proxy service of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow remote unauthenticated attackers to obtain sensitive information and possibly cause a denial of service attack.

Which versions are affected by CVE-2018-6440?

It affects 1 product.

Products include Broadcom Fabric Operating System.

How do I fix CVE-2018-6440?

No fix has been published for CVE-2018-6440 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-6440 being exploited?

There is no known exploitation of CVE-2018-6440 in the wild and no public exploit code.

Other vulnerabilities in Broadcom Fabric Operating System

• CVE-2025-1976 Broadcom Brocade Fabric OS Code Injection Exploited High 8.6
• CVE-2021-22555 Linux Kernel Heap Out-of-Bounds Write Exploited High 8.3
• CVE-2022-33186 Command injection in Brocade Fabric OS Critical 9.8
• CVE-2021-27797 Hardcoded credentials in Brocade Fabric OS Critical 9.8
• CVE-2020-15371 Code injection in Brocade Fabric OS Critical 9.8

All Broadcom Fabric Operating System vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-pw5q-89m2-9m46.