PatchTheCVECVE-2018-12591: Ubiquiti Networks EdgeSwitch version 1.7.3 and prior suffer from an improperly neutralized element in an OS co
CVE-2018-12591 is a high-severity flaw (CVSS 7.2) affecting edgeswitch firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Ubiquiti Networks EdgeSwitch version 1.7.3 and prior suffer from an improperly neutralized element in an OS command due to lack of protection on the admin CLI, leading to code execution and privilege escalation greater than administrators themselves are allowed. An attacker with access to an admin account could escape the restricted CLI and execute arbitrary shell instructions.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.2 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 1.8% (top 21%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2018-06-20 |
| 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-2018-12591?
edgeswitch firmware: upgrade to newer than 1.7.3. Exact commands for each OS are on this page.
Is CVE-2018-12591 being exploited?
CVE-2018-12591 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-2018-12591 affect?
CVE-2018-12591 affects edgeswitch firmware. Severity is high (CVSS 7.2). Ubiquiti Networks EdgeSwitch version 1.7.3 and prior suffer from an improperly neutralized element in an OS command due to lack of protection on the admin CLI, leading to code execution and privilege escalation greater than administrators t
How urgent is CVE-2018-12591?
Priority 45/100. High severity
Software pages
Related CVEs
- CVE-2020-8233 HIGH 8.8 UPGRADE DOWNGRADE A command injection vulnerability exists in EdgeSwitch firmware <v1.9.0 that allowed an authenticated read-onl
- CVE-2020-8232 MEDIUM 6.5 UPGRADE An information disclosure vulnerability exists in EdgeMax EdgeSwitch firmware v1.9.0 that allowed read only us
- CVE-2019-5446 HIGH 7.2 UPGRADE Command Injection in EdgeMAX EdgeSwitch prior to 1.8.2 allow an Admin user to execute commands as root.
- CVE-2019-5445 MEDIUM 4.9 UPGRADE DoS in EdgeMAX EdgeSwitch prior to 1.8.2 allow an Admin user to Crash the SSH CLI interface by using crafted c
- CVE-2018-12590 HIGH 7.2 UPGRADE Ubiquiti Networks EdgeSwitch version 1.7.3 and prior suffer from an externally controlled format-string vulner