CVE-2021-34992
HIGHOrckestra C1 CMS 6.10 - Authenticated Remote Code Execution via Deserialization in Composite.dll
Title source: llmDescription
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.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-1304/
Patch, Release Notes, Third Party Advisory x_refsource_misc
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11
Scores
CVSS v3
8.8
EPSS
0.0414
EPSS Percentile
89.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-502
Status
published
Products (1)
orckestra/c1_cms
6.10
Published
Nov 15, 2021
Tracked Since
Feb 18, 2026