SAP NetWeaver Remote Code Execution Vulnerability
The Invoker Servlet on SAP NetWeaver Application Server Java platforms, possibly before 7.3, does not require authentication, which allows remote attackers to execute arbitrary code via an HTTP or HTTPS request, as exploited in the wild in…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)03 Nov 2021
- Exploited in EUVD (ENISA)03 Nov 2021
- Used by ransomwareno
- EPSS above 10 %17.8%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
The Invoker Servlet on SAP NetWeaver Application Server Java platforms, possibly before 7.3, does not require authentication, which allows remote attackers to execute arbitrary code via an HTTP or HTTPS request, as exploited in the wild in 2013 through 2016, aka a "Detour" attack.
Affected products
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
-
Published
-
Exploitation reported (ENISA)
-
Added to the KEV catalog
-
CISA remediation due date
-
EPSS peak: 17.8%
References
Other exploited vulnerabilities from the same vendor
- CVE-2025-42999SAP NetWeaver Deserialization Vulnerability6.4 · Background exploitation
- CVE-2025-31324SAP NetWeaver Unrestricted File Upload Vulnerability10.0 · Background exploitation
- CVE-2017-12637SAP NetWeaver Directory Traversal Vulnerability8.3 · Background exploitation
- CVE-2019-0344SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability5.9 · Background exploitation
- CVE-2022-22536SAP Multiple Products HTTP Request Smuggling Vulnerability9.3 · Background exploitation
- CVE-2021-38163SAP NetWeaver Unrestricted File Upload Vulnerability6.9 · Background exploitation