What is CVE-2021-40503?

CVE-2021-40503 is a high-severity vulnerability in SAP Gui For Windows, classified under Insufficiently Protected Credentials. CVSS score: 7.8/10. Published 2021-11-10.

How severe is CVE-2021-40503?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in SAP Gui For Windows

CVE-2021-40503

An information disclosure vulnerability exists in SAP GUI for Windows - versions < 7.60 PL13, 7.70 PL4, which allows an attacker with sufficient privileges on the local client-side PC to obtain an equivalent of the user’s password. With this highly sensitive data leaked, the attacker would be able to logon to the backend system the SAP GUI for Windows was connected to and launch further attacks depending on the authorizations of the user.

Published 2021-11-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.4th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

SAP Gui For Windows — versions 7.60, 7.70
SAP Se Gui For Windows — versions < 7.60 PL13, < 7.70 PL4

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

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-2021-40503?: CVE-2021-40503 is a high-severity vulnerability in SAP Gui For Windows, classified under Insufficiently Protected Credentials. CVSS score: 7.8/10. Published 2021-11-10.
How severe is CVE-2021-40503?: High severity. CVSS v3 base score is 7.8 out of 10.