Vulnerability Details : CVE-2020-6959
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.
Vulnerability category: Execute code
Products affected by CVE-2020-6959
- cpe:2.3:o:honeywell:maxpro_nvr_se_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:maxpro_nvr_xe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:maxpro_nvr_pe_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:mpnvrswxx_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:hnmswvms_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:hnmswvmslt_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-6959
1.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-6959
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-6959
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by:
- ics-cert@hq.dhs.gov (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2020-6959
-
https://www.us-cert.gov/ics/advisories/icsa-20-021-01
Honeywell Maxpro VMS & NVR | CISAThird Party Advisory;US Government Resource
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