What is CVE-2021-27598?

CVE-2021-27598 is a medium-severity vulnerability in SAP Netweaver Application Server Java, classified under Improper Access Control. CVSS score: 5.3/10. Published 2021-04-13.

How severe is CVE-2021-27598?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in SAP Netweaver Application Server Java

CVE-2021-27598

SAP NetWeaver AS JAVA (Customer Usage Provisioning Servlet), versions - 7.31, 7.40, 7.50, allows an attacker to read some statistical data like product version, traffic, timestamp etc. because of missing authorization check in the servlet.

Published 2021-04-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

SAP Netweaver Application Server Java — versions 7.31, 7.40, 7.50
SAP Se Netweaver As For Java (Customer Usage Provisioning Servlet) — versions < 7.31, < 7.40, < 7.50

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2021-27598?: CVE-2021-27598 is a medium-severity vulnerability in SAP Netweaver Application Server Java, classified under Improper Access Control. CVSS score: 5.3/10. Published 2021-04-13.
How severe is CVE-2021-27598?: Medium severity. CVSS v3 base score is 5.3 out of 10.