CVE-2020-6959

CRITICAL

Honeywell Maxpro Nvr XE Firmware < 5.6 - Insecure Deserialization

Title source: rule

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.

Scores

CVSS v3 9.8
EPSS 0.0093
EPSS Percentile 75.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (6)

honeywell/maxpro_nvr_xe_firmware < 5.6
honeywell/maxpro_nvr_se_firmware < 5.6
honeywell/maxpro_nvr_pe_firmware < 5.6
honeywell/mpnvrswxx_firmware < 5.6
honeywell/hnmswvms_firmware < vms560
honeywell/hnmswvmslt_firmware < vms560

Timeline

Published Jan 22, 2020
Tracked Since Feb 18, 2026