RCE via deserialization in SAP jConnect (SDK for ASE)
CVE-2025-42928 is a critical deserialization vulnerability in SAP jConnect (SDK for ASE / Sybase ASE connectivity). Under certain conditions, a high-privileged user can supply specially crafted input that is deserialized in an unsafe manner, enabling remote code execution (RCE).
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity deserialization vulnerability in SAP jConnect (CVSS 9.1) with patches released by SAP.
A deserialization vulnerability in SAP jConnect SDK for Sybase ASE that allows remote code execution with specially crafted input, requiring elevated privileges.
A deserialization vulnerability in SAP jConnect SDK for Sybase ASE allows remote code execution with specially crafted input, requiring elevated privileges.
A critical deserialization vulnerability in SAP jConnect SDK for ASE allows a high privileged user to achieve remote code execution via specially crafted input, impacting confidentiality, integrity, and availability.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.