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Vulnerability record · CVE-2026-1222 · published 20 January 2026

CVE-2026-1222: Unrestricted file upload vulnerability

PrismX MX100 AP controller developed by BROWAN COMMUNICATIONS has an Arbitrary File Upload vulnerability, allowing privileged remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

8.6 CVSS 4.0 High EPSS 0.65% · top 51.1% CWE-434 · Unrestricted file upload Deferred
8.6CVSS 4.0 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

PrismX MX100 AP controller developed by BROWAN COMMUNICATIONS has an Arbitrary File Upload vulnerability, allowing privileged remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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:

References

LinkTags
https://www.twcert.org.tw/en/cp-139-10643-2f8d7-2.html
https://www.twcert.org.tw/tw/cp-132-10642-3b808-1.html

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-1222), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.