9.8

CVE-2017-7575: schneider-electric modicon_tm221ce16r_firmware

CVSS: 9.8v3.1CriticalModified
Published 06-04-2017Last modified 29-05-2026
Open JSON

Vulnerability summary

CVE-2017-7575 is a critical (CVSS 9.8) vulnerability in schneider-electric modicon_tm221ce16r_firmware. EPSS estimates a 4.01% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
4.01%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 06-04-2017
    PublishedVulnerability first disclosed.
  2. 29-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

4.01%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

+0.09 pp

From 3.92% on 21-09-2026

21-09-202621-10-2026
EPSS score
4.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (os-s.net)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Schneider-electric1 product

1 vendor · 1 product

References

3 links