CVE-2020-36907

Extreme Networks Aerohive HiveOS <=11.x 11.x Unauthenticated Remote Denial of Service

CVSS 8.7 HIGHEPSS 0.5%CWE-770

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

Extreme Networks · Aerohive HiveOS

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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