CVE-2021-45420
9.8
CRITICAL · CVSS 3.1 · EPSS 17.6% (pctl 97)
Patch early
EPSS 17.6% — above the 10% action threshold.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 17.55% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-200 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-02-14 |
| Last modified | 2026-07-09 |
Affected (2)
| Vendor | Product |
|---|---|
| emerson | dixell xweb-500 |
| emerson | dixell xweb-500 firmware |
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