CVE•Published 2020-11-18•Modified 2026-05-29•1 article on news•5 live references•NVD data
CVE-2020-7563Schneider-electric · Modicon_tsxety4103_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
78
Exploit Prediction Scoring System · top 22% of all CVEs
Weaknesses (CWE)
Description
A CWE-787: Out-of-bounds Write vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause corruption of data, a crash, or code execution when uploading a specially crafted file on the controller over FTP.
Timeline
Published 2020-11-18
Modified 2026-05-29
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-2020-7563Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Modicon Tsxety4103 Firmware"Hosts Shodan identified as running Modicon Tsxety4103 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2020-7563Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2020-7563Censys host search filtered to this CVE id.
grep.app
CVE-2020-7563Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2020-7563GitHub code search for direct mentions.
Google dork
"CVE-2020-7563" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2020-7563 on GitHub.