CVE-2021-38163

SAP NetWeaver: Unrestricted File Upload

As of , CVE-2021-38163 in SAP NetWeaver is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 9 June 2022
US federal deadline
30 June 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.37Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.01 on 9 June 2022EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

SAP NetWeaver contains a vulnerability that allows unrestricted file upload.

CISA's 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.

The CVE record's description, from sap

CVE published
14 September 2021
Assigned by
sap
CVSS
9.9 Critical (CVSS 3.1, from the CNA)
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23
Relative Path Traversal
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

NetWeaver: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2020-6287Missing Authentication for Critical FunctionSAP NetWeaverPatch this weekMetasploit module; EPSS 0.950.95
CVE-2025-31324Unrestricted File UploadSAP NetWeaverPatch this weekRansomware use; EPSS 0.990.99
CVE-2017-12637Directory TraversalSAP NetWeaverPatch this weekEPSS 0.950.95
CVE-2016-2386SQL InjectionSAP NetWeaverPatch this weekEPSS 0.720.72
CVE-2016-2388Information DisclosureSAP NetWeaverPatch this weekEPSS 0.520.52
CVE-2025-42999DeserializationSAP NetWeaverPatch this weekRansomware use0.14
CVE-2016-3976Directory TraversalSAP NetWeaverPatch soon0.47
CVE-2010-5326Remote Code ExecutionSAP NetWeaverPatch soon0.18
CVE-2016-9563XML External Entity (XXE)SAP NetWeaverPatch soon0.24

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