Security readout for executives and security teams
Plain-English summary
This is a browser-side XSS issue in SAP NetWeaver AS ABAP Web Dynpro ABAP applications. If exploited, a malicious authenticated user could cause another user to run attacker-controlled script in the SAP browser session, potentially exposing limited data or changing visible actions.
Executive priority
Treat as a normal-priority SAP security maintenance item unless affected systems are internet-facing or highly privileged. The issue can affect confidentiality and integrity, but the source evidence supports medium severity rather than emergency response.
Technical view
SAP reports insufficient encoding of user-controlled input in Web Dynpro ABAP applications on specified SAP_UI and SAP_BASIS versions. CVSS 5.4 indicates network reachability, low attack complexity, low privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.
Likely exposure
Exposure is most likely in organizations running SAP NetWeaver AS ABAP Web Dynpro ABAP applications with SAP_UI 750, 752, 753, 754, 755 or SAP_BASIS 702, 731. Business risk depends on portal reachability, user roles, and whether affected components remain deployed.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires privileges and victim interaction, which lowers urgency compared with unauthenticated server compromise, but SAP browser sessions often carry sensitive business context.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, and SAP references. No CWE, exploit details, proof of concept, or fixed-version details are provided in the bundle, so validation should stay tied to SAP Note 3025604 and component inventory.
Mitigation direction
- Review SAP Note 3025604 for SAP's official correction and implementation guidance.
- Apply vendor-provided updates or corrections for affected SAP_UI and SAP_BASIS components.
- Prioritize externally reachable or broadly used SAP Web Dynpro ABAP applications.
- Restrict access to affected SAP interfaces where business operations allow.
- Monitor SAP advisory channels for any updated remediation details.
Validation and detection
- Inventory SAP_UI and SAP_BASIS component versions across ABAP systems.
- Identify Web Dynpro ABAP applications exposed to users or networks.
- Confirm SAP Note 3025604 applicability in SAP support tooling.
- Verify corrective transport or patch status after remediation.
- Review logs and reports for suspicious XSS-like browser activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-33664 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.4MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999CVE reference · x_refsource_MISC
- https://launchpad.support.sap.com/#/notes/3025604CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.