CVE-2018-5789

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-02-05 · updated 2026-06-17
Weakness: CWE-611

Description

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.

Affected products

Extremewireless Wing: from 5.0 before 5.8.6.9; from 5.9.0 before 5.9.1.3 — fixed in 5.8.6.9, 5.9.1.3

How to fix

Upgrade to a fixed version: Extremewireless Wing 5.8.6.9, 5.9.1.3. Check the vendor advisory for mitigations.

References

https://gtacknowledge.extremenetworks.com/articles/Vulnerability_Notice/VN-2018-003
https://gtacknowledge.extremenetworks.com/articles/Vulnerability_Notice/VN-2018-003

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