VULNERABILITY INTELLIGENCE

CVE-2020-27868

CVSS score9.8 CRITICAL

EPSS probability81.75%

CISA KEVNot currently listed

Published2021-02-12

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Qognify Ocularis 5.9.0.395. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of serialized objects provided to the EventCoordinator endpoint. 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 SYSTEM. Was ZDI-CAN-11257.

Weakness classification

zdi-disclosures@trendmicro.com: CWE-502
nvd@nist.gov: CWE-502

Primary references

zdi-disclosures@trendmicro.com — Release Notes, Vendor Advisory
zdi-disclosures@trendmicro.com — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry