CVE-2025-42944 Insecure Deserialization vulnerability in SAP Netweaver (RMI-P4)
Unauthenticated attackers can execute arbitrary OS commands via malicious Java objects in SAP NetWeaver's RMI-P4 module.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-42944?
CVE-2025-42944 is a critical unsafe deserialization vulnerability in SAP_SE SAP Netweaver (RMI-P4), published on 9 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Due to a deserialization vulnerability in SAP NetWeaver, an unauthenticated attacker could exploit the system through the RMI-P4 module by submitting malicious payload to an open port. The deserialization of such untrusted Java objects could lead to arbitrary OS command execution, posing a high impact to the application's confidentiality, integrity, and availability.
Weakness: CWE-502
Which versions are affected by CVE-2025-42944?
How do I fix CVE-2025-42944?
No fix has been published for CVE-2025-42944 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-42944 being exploited?
There is no known exploitation of CVE-2025-42944 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-f3f2-7mpx-vwjh.