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CVE-2021-38163: SAP NetWeaver Unrestricted File Upload Vulnerability

criticalknown exploitedpublic exploitCVE-2021-38163
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
SAP NetWeaver contains a vulnerability that allows unrestricted file upload.

CSIRTS triage

vendor: SAPproduct: NetWeaverOther
What
A vulnerability allows unrestricted file upload.
Who is affected
Deployments of SAP NetWeaver.
Urgency
Urgent remediation is necessary as this vulnerability is actively exploited and critical in severity.
Action
Update to the latest version of SAP NetWeaver.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-06-09
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-38163

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-38163coverage & exploitation statusNVD · CVE.org

Recent advisories for SAP NetWeaver Unrestricted

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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