What’s Vulnerable › Vulnerabilities

CVE-2020-36907: Extreme Networks Aerohive HiveOS <=11.x 11.x Unauthenticated Remote Denial of Service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-06 · updated 2026-06-17
• Weakness: CWE-770

Description

Aerohive HiveOS contains a denial of service vulnerability in the NetConfig UI that allows unauthenticated attackers to render the web interface unusable. Attackers can send a crafted HTTP request to the action.php5 script with specific parameters to trigger a 5-minute service disruption.

Affected products

• Extreme Networks Aerohive HiveOS: through 11.0

References

• https://advisories.ncsc.nl/2020/ncsc-2020-0367.html
• https://community.extremenetworks.com/t5/iq-engine-hive-os-announcements/bg-p/IQ_Engine_Hive_OS_Announcements
• https://exchange.xforce.ibmcloud.com/vulnerabilities/181649
• https://packetstorm.news/files/id/157587
• https://www.exploit-db.com/exploits/48441
• https://www.extremenetworks.com
• https://www.vulncheck.com/advisories/extreme-networks-aerohive-hiveos-x-x-unauthenticated-remote-denial-of-service
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5566.php

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