CVE-2020-36907

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.5% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-01-06 15:52Z9 MO AGO

Last updated

2026-03-23 15:43Z7 MO AGO

Reserved

2026-01-03

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

37614de6f78325182a726395d928f2d97f039b3a32a6cc4cfd0348858bdefe14

• www.exploit-db.comExploitDB-48441https://www.exploit-db.com/exploits/48441exploit
• www.extremenetworks.comExtreme Networks Product Homepagehttps://www.extremenetworks.comproduct
• community.extremenetworks.comHiveOS Product Announcementshttps://community.extremenetworks.com/t5/iq-engine-hive-os-announcements/bg-p/IQ_Engine_Hive_OS_Announcementsproduct
• www.zeroscience.mkZero Science Lab Disclosure (ZSL-2020-5566)https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5566.phpthird-party-advisory
• advisories.ncsc.nlNCSC Security Advisoryhttps://advisories.ncsc.nl/2020/ncsc-2020-0367.htmlthird-party-advisory
• exchange.xforce.ibmcloud.comIBM X-Force Vulnerability Exchangehttps://exchange.xforce.ibmcloud.com/vulnerabilities/181649vdb-entry
• packetstorm.newsPacket Storm Security Exploit Entryhttps://packetstorm.news/files/id/157587exploit
• www.vulncheck.comVulnCheck Advisory: Extreme Networks Aerohive HiveOS <=11.x 11.x Unauthenticated Remote Denial of Servicehttps://www.vulncheck.com/advisories/extreme-networks-aerohive-hiveos-x-x-unauthenticated-remote-denial-of-servicethird-party-advisory