The NetConfig UI administrative interface in Extreme Networks ExtremeWireless Aerohive HiveOS and IQ Engine through 10.0r8a allows attackers to execute PHP code as the root user via remote HTTP requests that insert this code into a log file and then traverse to that file.
CVE-2020-16152
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 36% (98th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2020-8118 (ENISA EUVD) · GHSA-r23h-9vch-4xm4 (GitHub Security Advisories)Source: ENISA EUVD
- Public exploit code is available (Metasploit, other public proof-of-concept code)
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
The CVE record's description, written by its CNA (MITRE Corporation), states the affected versions: "The NetConfig UI administrative interface in Extreme Networks ExtremeWireless Aerohive HiveOS and IQ Engine through 10.0r8a allows attackers to execute PHP code as the root user via remote HTTP requests that insert this…" No release containing a fix is confirmed on record.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 70EG Risk 70/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation65% × 40%EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.Automatability0% × 15%CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high. - EPSS PROB
- 36%
- EPSS %ILE
- 98th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 36% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
November 14, 2021
Last Modified
November 21, 2024
Advisory Details (2)
Auto-updated Oct 4, 2026Search: | Extreme Portal
https://gtacknowledge.extremenetworks.com/articles/Vulnerability_Notice/VN-2020-001Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 17× in last 7d / 65× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 97 of 185 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 88 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 10:26 UTCEG score recompute
- 2026-11-01 10:26 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-31 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-31 09:09 UTCEG score recompute
- 2026-10-31 09:09 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-30 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-30 07:53 UTCEG score recompute
- 2026-10-30 07:53 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-29 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-29 06:38 UTCEG score recompute
- 2026-10-29 06:37 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-28 16:27 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-28 05:20 UTCEG score recompute
- 2026-10-28 05:20 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-27 16:27 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-27 04:04 UTCEG score recompute
- 2026-10-27 04:04 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-25 22:29 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-25 18:49 UTCEG score recompute
- 2026-10-25 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-24 21:10 UTCEG score recompute
- 2026-10-24 21:10 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-24 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-23 19:54 UTCEG score recompute
- 2026-10-23 19:54 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
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- 2026-10-23 16:27 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-22 18:38 UTCEG score recompute
- 2026-10-22 18:38 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-22 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-21 17:20 UTCEG score recompute
- 2026-10-21 17:20 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-21 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-20 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-20 15:51 UTCEG score recompute
- 2026-10-20 15:50 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-19 16:27 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-19 14:32 UTCEG score recompute
- 2026-10-19 14:32 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-18 13:14 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-18 09:32 UTCEG score recompute
- 2026-10-17 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-17 11:56 UTCEG score recompute
- 2026-10-17 11:56 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-16 16:33 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-16 10:39 UTCEG score recompute
- 2026-10-16 10:38 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-15 16:27 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-15 09:19 UTCEG score recompute
- 2026-10-15 09:19 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-14 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-14 05:35 UTCEG score recompute
- 2026-10-14 05:35 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-13 16:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-13 00:49 UTCGHSA enrichmentGHSA-r23h-9vch-4xm4 · GitHub severity CRITICAL
- 2026-10-12 19:44 UTCEG score recompute
- 2026-10-12 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-12 00:07 UTCEG score recompute
- 2026-10-11 13:43 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-10 19:56 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-09 20:04 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-08 16:38 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-07 23:44 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-06 15:13 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-05 17:39 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-03 14:22 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-10-02 16:22 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-30 15:13 UTCEG score recompute
- 2026-09-30 14:59 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-27 13:40 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-26 15:54 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-26 00:20 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-24 14:00 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-22 14:43 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-21 20:28 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-18 19:23 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-17 19:22 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-16 14:04 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-15 03:06 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-12 14:56 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-11 14:48 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-11 09:32 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-10 09:29 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-08 21:56 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-07 15:57 UTCEPSS rescoreEPSS 36% · 98th percentile
- 2026-09-06 13:44 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-09-05 15:24 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-09-04 13:57 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-09-04 05:03 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-09-02 14:08 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-30 19:14 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-30 01:18 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-26 14:42 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-25 13:45 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-21 23:45 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-20 22:52 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-19 17:00 UTCEPSS rescoreEPSS 35% · 98th percentile
- 2026-08-18 13:44 UTCEPSS rescoreEPSS 35% · 98th percentile
Publicly available exploits
(3 references)Public exploit code is referenced for this CVE (1 Metasploit module, 2 GitHub PoCs). No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.
- Metasploitexploit/unix/webapp/aerohive_netconfig_lfi_log_poison_rce✓ verifiedPublished Nov 11, 2021
Aerohive NetConfig 10.0r8a LFI and log poisoning to RCE
Open source ↗ - GitHub PoCNate0634034090/nate158g-m-w-n-l-p-d-a-o-ePublished Jan 2, 2022
### This module requires Metasploit: https://metasploit.com/download# Current source: https://github.com/rapid7/metasploit-framework##class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking prepend Msf::Exploit::Remote::AutoCheck include Msf::Exploit::FileDropper include Msf::Exploit::Remote::HttpClient include Msf::Exploit::Remote::HttpServer include Msf::Exploit::Remote::HTTP::Wordpress def initialize(info = {}) super( update_info( info, 'Name' => 'Wordpress Popular Posts Authenticated RCE', 'Description' => %q{ This exploit requires Metasploit to have a FQDN and the ability to run a payload web server on port 80, 443, or 8080. The FQDN must also not resolve to a reserved address (192/172/127/10). The server must also respond to a HEAD request for the payload, prior to getting a GET request. This exploit leverages an authenticated improper input validation in Wordpress plugin Popular Posts <= 5.3.2. The exploit chain is rather complicated. Authentication is required and 'gd' for PHP is required on the server. Then the Popular Post plugin is reconfigured to allow for an arbitrary URL for the post image in the widget. A post is made, then requests are sent to the post to make it more popular than the previous #1 by 5. Once the post hits the top 5, and after a 60sec (we wait 90) server cache refresh, the homepage widget is loaded which triggers the plugin to download the payload from our server. Our payload has a 'GIF' header, and a double extension ('.gif.php') allowing for arbitrary PHP code to be executed. }, 'License' => MSF_LICENSE, 'Author' => [ 'h00die', # msf module 'Simone Cristofaro', # edb 'Jerome Bruandet' # original analysis ], 'References' => [ [ 'EDB', '50129' ], [ 'URL', 'https://blog.nintechnet.com/improper-input-validation-fixed-in-wo
Open source ↗ - GitHub PoCeriknl/CVE-2020-16152Published Aug 30, 2020
Explanation and PoC for CVE-2020-16152
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
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Dependency Blast Radius
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