XML external entity injection in SAP NetWeaver AS for JAVA
Priority LOW 32CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
SAP NetWeaver AS for JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker authenticated as an administrator to connect over a network and submit a specially crafted XML file in the application because of missing XML Validation, this vulnerability enables attacker to fully compromise confidentiality by allowing them to read any file on the filesystem or fully compromise availability by causing the system to crash. The attack cannot be used to change any data so that there is no compromise as to integrity.
Why it matters now
EPSS 0.01594 75th percentileScored 2026-11-07
Fix Fixed SAP NetWeaver AS for JAVA (SAP SE): 7.20, 7.30, 7.31 +2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SAP | SAP NetWeaver AS for JAVA | before 7.20; before 7.30; before 7.31; before 7.40; before 7.50 | 7.20, 7.30, 7.31, 7.40, 7.50 | Patch available | CNA |
- SAP NetWeaver AS for JAVA VendorSAP Affected before 7.20; before 7.30; before 7.31; before 7.40; before 7.50 Fixed in 7.20, 7.30, 7.31, 7.40, 7.50 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sap:netweaver_application_server_for_java:7.20:*:*:*:*:*:*:* | 7.20 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_for_java:7.30:*:*:*:*:*:*:* | 7.30 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_for_java:7.31:*:*:*:*:*:*:* | 7.31 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_for_java:7.40:*:*:*:*:*:*:* | 7.40 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_for_java:7.50:*:*:*:*:*:*:* | 7.50 | Vulnerable | SAP |
- cpe:2.3:a:sap:netweaver_application_server_for_java:7.20:*:*:*:*:*:*:* Versions 7.20 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_for_java:7.30:*:*:*:*:*:*:* Versions 7.30 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_for_java:7.31:*:*:*:*:*:*:* Versions 7.31 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_for_java:7.40:*:*:*:*:*:*:* Versions 7.40 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_for_java:7.50:*:*:*:*:*:*:* Versions 7.50 Vulnerable ·SAP
Remediation
- Fix · CNA SAP NetWeaver AS for JAVA (SAP SE) Fixed in 7.20, 7.30, 7.31, 7.40, 7.50
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27635
- 2026-10-03 Alias added: GHSA-353p-c73g-8fwc
References
Patch 2
More SAP Netweaver Application Server For Java vulnerabilities
- TI-2023-00017 Improper access control in SAP NetWeaver AS for Java CVSS 3.1CRITICAL 9.8
- TI-2023-09656 Improper Access Control in SAP NetWeaver AS for Java CVSS 3.1CRITICAL 9.9
- TI-2023-14558 Improper access control during application start-up in SAP AS NetWeaver JAVA. CVSS 3.1CRITICAL 9.1
- TI-2022-10649 Missing authorization in SAP NetWeaver Application Server for Java CVSS 3.1HIGH 7.5
- TI-2023-15023 Log Injection vulnerability in SAP NetWeaver AS for Java (Log Viewer) CVSS 3.1MEDIUM 5.3
- TI-2023-12018 Improper Access Control in SAP NetWeaver AS Java (Object Analyzing Service) CVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-27635 · CVE Program
- CVE-2021-27635 · NVD
- FIRST EPSS
- GHSA-353p-c73g-8fwc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences