CVE-2021-45420

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

CVSS v3.1

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

CVSS v2.0

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

18.96% chance of exploitation in the next 30 days, 97th percentile

Nuclei

critical · CWE-200

Published

2022-02-14

Updated

2026-07-09

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-45420.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2021-45418
• CVE-2021-45422
• CVE-2021-45417
• CVE-2021-45423
• CVE-2021-45416
• CVE-2021-45425