CVE-2021-21491 json
SAP Netweaver Application Server Java (Applications based on WebDynpro Java) versions 7.00, 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allow…
published 2021-03-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8764
- cvss
- 4.7
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
SAP Netweaver Application Server Java (Applications based on WebDynpro Java) versions 7.00, 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allow an attacker to redirect users to a malicious site due to Reverse Tabnabbing vulnerabilities.
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 4.7 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- SAP SE SAP NetWeaver Application Server Java (Applications based on Web Dynpro Java)
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
wiki.scn.sap.com
/wiki/pages/viewpage.action?pageId=571343107
vendor-advisory
-
launchpad.support.sap.com
/#/notes/2976947
permissions-required, vendor-advisory
Sources
- CVE List CVE-2021-21491
- NVD CVE-2021-21491
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