CVE-2017-7575

Name: CVE-2017-7575
Creator: NVD / NIST
Published: 2017-04-06T21:59:00.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.98%

Last modified Jun 17, 2026

CVE-2017-7575 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp). Subsequently the application may be arbitrarily downloaded, modified, and uploaded.. EPSS estimates a 3.98% chance of exploitation in the next 30 days.

Description

Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp). Subsequently the application may be arbitrarily downloaded, modified, and uploaded.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.98%

89.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Schneider-Electric	Modicon Tm221ce16r Firmware	1.3.3.3

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-02
http://www.securityfocus.com/bid/97523Third Party Advisory, VDB Entry
https://os-s.net/advisories/OSS-2017-01.pdfExploit, Third Party Advisory
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-02
http://www.securityfocus.com/bid/97523Third Party Advisory, VDB Entry
https://os-s.net/advisories/OSS-2017-01.pdfExploit, Third Party Advisory

Timeline

Published: Apr 6, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7575?

How severe is CVE-2017-7575?

CVE-2017-7575 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.98% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7575?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7575?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST