Vulnerability record · CVE-2021-45420 · published 14 February 2022

CVE-2021-45420: Emerson dixell xweb-500 firmware information exposure vulnerability

Emerson · Dixell Xweb 500 Firmware

Emerson Dixell XWEB-500 products are affected by arbitrary file write vulnerability in /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi. An attacker will be able to write any file on the target system without any kind of authentication mechanism, and this can lead to denial of service and potentially remote code execution. Note: the product has not been supported since 2018 and should be removed or replaced.

9.8 CVSS 3.1 Critical EPSS 18% · top 3.0% CWE-200 · Information exposureCWE-306 · Missing authentication for critical function

9.8CVSS 3.1 base score, v2 10.0

18%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References, 2 tagged exploit

9 Jul 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Dixell Xweb 500 Firmware Emerson

References

Link	Tags
https://www.swascan.com/emerson	ExploitThird Party Advisory
https://www.swascan.com/emerson	ExploitThird Party Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2021-45420), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.