What is CVE-2021-21487?

CVE-2021-21487 is a high-severity vulnerability in SAP Payment Engine, classified under Missing Authorization. CVSS score: 8.8/10. Published 2021-03-09.

How severe is CVE-2021-21487?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in SAP Payment Engine

CVE-2021-21487

SAP Payment Engine version 500, does not perform necessary authorization checks for an authenticated user, resulting in escalation of privileges.

Vulnerability class: Broken Access Control

Published 2021-03-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

SAP Payment Engine — versions 500
SAP Se Payment Engine — versions < 500

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
launchpad.support.sap.com/ (Permissions Required, Vendor Advisory)

Frequently asked questions

What is CVE-2021-21487?: CVE-2021-21487 is a high-severity vulnerability in SAP Payment Engine, classified under Missing Authorization. CVSS score: 8.8/10. Published 2021-03-09.
How severe is CVE-2021-21487?: High severity. CVSS v3 base score is 8.8 out of 10.