Security readout for executives and security teams
Plain-English summary
This is a critical SAP NetWeaver issue in Visual Composer 7.0 RT. A low-privileged authenticated user could cause operating system commands to run as the Java Server process, potentially exposing or changing server data or taking the service offline.
Executive priority
Treat as urgent for any affected SAP NetWeaver Java system. The issue combines high impact, low attack complexity, low required privileges, and confirmed KEV listing. Remediation should be tracked as a critical operational risk, especially where SAP supports important business processes.
Technical view
CVE-2021-38163 affects SAP NetWeaver Visual Composer 7.0 RT versions 7.30, 7.31, 7.40, and 7.50. The CVE describes network exploitation by a non-administrative authenticated user through malicious file processing, leading to OS command execution. It is rated CVSS 9.9 and mapped to CWE-22.
Likely exposure
Highest exposure is SAP NetWeaver Java environments running Visual Composer 7.0 RT in the listed versions where non-administrative users can authenticate over the network. Systems without that component or outside those versions are not shown as affected by the supplied sources.
Exploitation context
CISA lists CVE-2021-38163 in the Known Exploited Vulnerabilities catalog, so active exploitation is supported by a government source. The supplied bundle does not provide exploit details, indicators of compromise, or exploitation volume.
Researcher notes
Evidence is strong for affected product, impact, CVSS severity, and known exploitation status. Fix detail is not contained in the public bundle beyond the SAP Note reference, so remediation specifics should come from SAP Note 3084487 and current SAP support guidance.
Mitigation direction
- Check SAP Note 3084487 and apply SAP’s current vendor guidance.
- Prioritize remediation for internet-reachable or broadly accessible SAP NetWeaver Java systems.
- Restrict access to affected SAP services until vendor guidance is applied.
- Review whether Visual Composer 7.0 RT is required and disable unused exposure if SAP supports it.
- Monitor SAP Java Server activity for suspicious file-processing or privilege-impacting behavior.
Validation and detection
- Inventory SAP NetWeaver systems and identify Visual Composer 7.0 RT installations.
- Confirm whether versions 7.30, 7.31, 7.40, or 7.50 are present.
- Verify SAP Note 3084487 status through SAP support channels.
- Check whether non-administrative users can reach the affected network service.
- Review CISA KEV status when setting remediation deadlines.
Public sources used
Michael Williams reviewed this cited source version on .
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.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-38163 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
- Critical
- CVSS
- 9.9 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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.
CISA KEV status
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:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H3.16Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405CVE reference · x_refsource_MISC
- https://launchpad.support.sap.com/#/notes/3084487CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38163CVE reference · government-resource
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.