How severe is CVE-2021-40503?

CVE-2021-40503 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40503?

CVE-2021-40503 primarily affects Sap Gui For Windows. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40503?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-40503 published?

CVE-2021-40503 was published on 2021-11-10 and last updated on 2026-06-17.

CVE-2021-40503

CVE-2021-40503 is a high-severity vulnerability in Sap Gui For Windows with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 2.1
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Sap Gui For Windows
Published: 2021-11-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-40503?: CVE-2021-40503 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40503?: CVE-2021-40503 primarily affects Sap Gui For Windows. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-40503 published?: CVE-2021-40503 was published on 2021-11-10 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:sap:gui_for_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:-:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level1:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level10:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level11:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level12:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level2:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level3:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level4:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level5:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level6:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level7:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level8:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level8_hotfix1:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.60:patch_level9:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.70:-:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.70:patch_level1:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.70:patch_level2:*:*:*:*:*:*
cpe:2.3:a:sap:gui_for_windows:7.70:patch_level3:*:*:*:*:*:*

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