Exploited. On CISA's list since 2021-11-03.

SAP NetWeaver Missing Authentication for Critical Function Vulnerability

CVE-2020-6287 · SAP NetWeaver · Published 2020-07-14

How bad would it be?

10.0 out of 10

CVSS rates it critical: about as damaging as flaws get.

How likely is it to be used?

95%

Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).

Is it already being used?

Yes

CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 1641 days ago (2022-05-03).

What CISA says to do

Apply updates per vendor instructions.

SAP NetWeaver Application Server Java Platforms contains a missing authentication for critical function vulnerability allowing unauthenticated access to execute configuration tasks and create administrative users.

nvd.nist.gov

What the flaw is

SAP NetWeaver AS JAVA (LM Configuration Wizard), versions - 7.30, 7.31, 7.40, 7.50, does not perform an authentication check which allows an attacker without prior authentication to execute configuration tasks to perform critical actions against the SAP Java system, including the ability to create an administrative user, and therefore compromising Confidentiality, Integrity and Availability of the system, leading to Missing Authentication Check.

From the NVD.

Fixes and advisories

launchpad.support.sap.comVendor Advisory
wiki.scn.sap.comVendor Advisory
launchpad.support.sap.comVendor Advisory
wiki.scn.sap.comVendor Advisory

Learn this

Explore this week’s weaknesses and all learning topics

Understand the kind of weakness behind this flaw. These resources teach the weakness, rather than reproduce this specific CVE. Follow the vendor's advice above to fix the affected product.

Missing authentication

A sensitive function is reachable without proving who is using it.

CWE-306 · CISA KEV; NVD record: 134c704f-9b21-4f2e-91b3-4a467353bcc0; NVD record: nvd@nist.gov

Reading and practice labs · Free account for labs. Basic HTTP knowledge; some labs use Burp Suite.

Explore the labs at PortSwigger Web Security Academy How it is prevented

CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.

On SentryFeed

No story in the last 14 days has mentioned it.

Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.