CVE-2020-11666Network attack vector

Authenticated privilege escalation via undisclosed access control flaw

Published Apr 15, 2020 · Updated Aug 4, 2024

Access control failure in Broadcom Layer7 API Developer Portal 4.3.1 and earlier allows remote authenticated users to elevate privileges. Broadcom identifies the locus only as an access control flaw and has not published the affected endpoint, authorization check, or privilege transition. A low-privileged portal account is required, and successful exploitation grants higher privileges that can affect portal confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability3.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Access control failure in Broadcom Layer7 API Developer Portal 4.3.1 and earlier allows remote authenticated users to elevate privileges. Broadcom identifies the locus only as an access control flaw and has not published the affected endpoint, authorization check, or privilege transition. A low-privileged portal account is required, and successful exploitation grants higher privileges that can affect portal confidentiality, integrity, and availability.

The record

CVE
CVE-2020-11666
Published
Apr 15, 2020
Updated
Aug 4, 2024
Vendor
Broadcom
Product
Layer7 API Developer Portal
Classifications
T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.3.1 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Broadcom · Layer7 API Developer Portalversion=4.3.1 and earlier

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo