CVE-2021-47891

critical · 9.3

Unified Remote 3.9.0.2463 contains a remote code execution vulnerability that allows attackers to send crafted network packets to execute arbitrary commands. Attackers can exploit the service by connecting to port 9512 and sending specially crafted packets to open a command prompt and download and execute malicious payloads.

9.3

CVSS

0.8%

EPSS (exploit prob.)

57th

EPSS percentile

2026-01-23

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-306

References

https://www.exploit-db.com/exploits/49587
https://www.unifiedremote.com/
https://www.unifiedremote.com/download
https://www.vulncheck.com/advisories/unified-remote-remote-code-execution

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-47891