CVE-2020-27868
Qognify
- Published
- 12 February 2021
- Last modified
- 17 June 2026
- CVSS
- 9.8 v3.1
- Severity
- critical
- EPSS
- 81.8% (100th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-502
CVSS: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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 81.8% probability of exploitation activity in the next 30 days, placing it in the top decile of all scored CVEs.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Ocularis | Qognify | Video management software | 5.9.0.395 |
References
Vendor advisory and patch
- https://www.qognify.com/support-training/software-downloads/
- https://www.qognify.com/support-training/software-downloads/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1453/ third-party
- https://www.zerodayinitiative.com/advisories/ZDI-20-1453/ third-party
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.