CVE-2021-45420 is a critical arbitrary file write vulnerability affecting Emerson Dixell XWEB-500 products, specifically in /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi. This vulnerability allows an unauthenticated attacker to write arbitrary files to the target system, leading to denial of service and potential remote code execution. With a CVSS score of 9.8 (Critical) and an EPSS score of 0.81, it represents a significant risk due to its network-based attack vector and low attack complexity. While there is no evidence of active exploitation in the wild or Metasploit modules, Nuclei templates exist, and the affected product has been unsupported since 2018, necessitating immediate removal or replacement.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:emerson:dixell_xweb-500_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.