CVE-2021-38163
SAP NetWeaver Unrestricted File Upload Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 30 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 36.90% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 9 June 2022 · due 30 June 2022
- Weakness
- CWE-22
- Affected
- sap/netweaver
- Source
- cna@sap.com
EPSS 36.9% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-38163
References
- https://launchpad.support.sap.com/#/notes/3084487Permissions Required
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405Broken Link, Vendor Advisory
- https://launchpad.support.sap.com/#/notes/3084487Permissions Required
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405Broken Link, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38163US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.