CVE-2021-34992

HIGH

Orckestra C1 Cms - Insecure Deserialization

Title source: rule

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Orckestra C1 CMS 6.10. Authentication is required to exploit this vulnerability. The specific flaw exists within Composite.dll. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-14740.

Scores

CVSS v3 8.8
EPSS 0.2114
EPSS Percentile 95.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (1)

orckestra/c1_cms

Timeline

Published Nov 15, 2021
Tracked Since Feb 18, 2026