CVE-2025-42928 Deserialization Vulnerability in SAP jConnect - SDK for ASE
A high-privileged user can exploit a deserialization flaw in SAP jConnect to achieve remote code execution, impacting system confidentiality, integrity, and availability.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-42928?
CVE-2025-42928 is a critical unsafe deserialization vulnerability in SAP_SE SAP jConnect - SDK for ASE, published on 9 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Under certain conditions, a high privileged user could exploit a deserialization vulnerability in SAP jConnect to launch remote code execution. The system may be vulnerable when specially crafted input is used to exploit the vulnerability resulting in high impact on confidentiality, integrity and availability of the system.
Weakness: CWE-502
Which versions are affected by CVE-2025-42928?
How do I fix CVE-2025-42928?
No fix has been published for CVE-2025-42928 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-2025-42928 being exploited?
There is no known exploitation of CVE-2025-42928 in the wild and no public exploit code.
Sources
Also known as GHSA-fmh5-rjfp-6qvq.