CVE-2020-6959

CRITICAL

Honeywell MAXPRO VMS and NVR < 5.6 - Unauthenticated Remote Code Execution via Unsafe Deserialization

Title source: llm
STIX 2.1

Description

The following versions of MAXPRO VMS and NVR, MAXPRO VMS:HNMSWVMS prior to Version VMS560 Build 595 T2-Patch, HNMSWVMSLT prior to Version VMS560 Build 595 T2-Patch, MAXPRO NVR: MAXPRO NVR XE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR SE prior to Version NVR 5.6 Build 595 T2-Patch, MAXPRO NVR PE prior to Version NVR 5.6 Build 595 T2-Patch, and MPNVRSWXX prior to Version NVR 5.6 Build 595 T2-Patch are vulnerable to an unsafe deserialization of untrusted data. An attacker may be able to remotely modify deserialized data without authentication using a specially crafted web request, resulting in remote code execution.

References (1)

Core 1
Core References
Third Party Advisory, US Government Resource x_refsource_misc
https://www.us-cert.gov/ics/advisories/icsa-20-021-01

Scores

CVSS v3 9.8
EPSS 0.0221
EPSS Percentile 80.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-502
Status published
Products (6)
honeywell/hnmswvms_firmware < vms560
honeywell/hnmswvmslt_firmware < vms560
honeywell/maxpro_nvr_pe_firmware < 5.6
honeywell/maxpro_nvr_se_firmware < 5.6
honeywell/maxpro_nvr_xe_firmware < 5.6
honeywell/mpnvrswxx_firmware < 5.6
Published Jan 22, 2020
Tracked Since Feb 18, 2026