PatchTheCVECVE-2018-5789: An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3
CVE-2018-5789 is a high-severity flaw (CVSS 7.5) affecting wing. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3. There is a Remote, Unauthenticated XML Entity Expansion Denial of Service on the WiNG Access Point / Controller via crafted XML entities to the Web User Interface.
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 | 1.1% (top 35%) |
| CISA exploited list | No |
| Weakness | CWE-611 |
| Published | 2018-02-05 |
| 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-2018-5789?
wing: upgrade to 5.8.6.9, 5.9.1.3. Exact commands for each OS are on this page.
Is CVE-2018-5789 being exploited?
CVE-2018-5789 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-2018-5789 affect?
CVE-2018-5789 affects wing. Severity is high (CVSS 7.5). An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3. There is a Remote, Unauthenticated XML Entity Expansion Denial of Service on the WiNG Access Point / Controller via crafted XML en
How urgent is CVE-2018-5789?
Priority 47/100. High severity; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2018-5796 HIGH 7.2 UPGRADE An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3
- CVE-2018-5795 MEDIUM 4.9 UPGRADE An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3
- CVE-2018-5794 MEDIUM 5.3 UPGRADE An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3
- CVE-2018-5793 MEDIUM 5.9 UPGRADE An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3
- CVE-2018-5792 MEDIUM 5.9 UPGRADE An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3