CVE-2021-3122
CMCAgent in NCR Command Center Agent 16.3 on Aloha POS/BOH servers permits the submission of a runCommand parameter (within an XML document sent to port...
- Published
- Feb 7, 2021
- Updated
- Aug 3, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
CMCAgent in NCR Command Center Agent 16.3 on Aloha POS/BOH servers permits the submission of a runCommand parameter (within an XML document sent to port 8089) that enables the remote, unauthenticated execution of an arbitrary command as SYSTEM, as exploited in the wild in 2020 and/or 2021. NOTE: the vendor's position is that exploitation occurs only on devices with a certain "misconfiguration."
Sources
modules/exploits/windows/misc/ncr_cmcagent_rce.rb
Metasploit Framework modulesDeclared conditions
- platform: Windows($.exploit_windows/misc/ncr_cmcagent_rce.platform)
- verification: check_declared($.exploit_windows/misc/ncr_cmcagent_rce.check)
network/cves/2021/CVE-2021-3122.yaml
Nuclei TemplatesDeclared conditions
- network: tcp($.protocol_keys)
- verification: dsl($.matchers[*].type)
- oob: interactsh_reference($.template_text)
Responsible use
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