CVE•Published 2022-04-11•Modified 2026-07-05•1 article on news•5 live references•NVD data
CVE-2021-37291Kevinlab · 4st_l-bems
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
94
Exploit Prediction Scoring System · top 6% of all CVEs
Weaknesses (CWE)
Description
An SQL Injection vulnerability exists in KevinLAB Inc Building Energy Management System 4ST BEMS 1.0.0 ivia the input_id POST parameter in index.php.
Timeline
Published 2022-04-11
Modified 2026-07-05
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-2021-37291Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Kevinlab 4st L-bems" version:"1.0.0"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"4st L-bems"HTTP body or banner mentions "4st L-bems" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-37291Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-37291Censys host search filtered to this CVE id.
grep.app
CVE-2021-37291Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-37291GitHub code search for direct mentions.
Google dork
"CVE-2021-37291" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-37291 on GitHub.