CVE•Published 2023-02-24•Modified 2026-05-18•1 article on news•6 live references•NVD data
CVE-2021-4105Bg-tek · Coslat_bx5s1d3_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
70
Exploit Prediction Scoring System · top 30% of all CVEs
Weaknesses (CWE)
Description
Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion. This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.
Timeline
Published 2023-02-24
Modified 2026-05-18
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2021-4105Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Coslat Bx5s1d3 Firmware"Hosts Shodan identified as running Coslat Bx5s1d3 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2021-4105Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-4105Censys host search filtered to this CVE id.
grep.app
CVE-2021-4105Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-4105GitHub code search for direct mentions.
Google dork
"CVE-2021-4105" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.