ZDI-26-849: Microsoft Qlib RestrictedUnpickler Deserialization of Untrusted Data Remote Code Execution Vulnerability
Published Nov 2, 2026
·Updated
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Qlib. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8.
Event History
Nov 2, 2026
Advisory Published
via ZDI·06:00 AM
Data Sourced
via ZDI·06:00 AM
Description