9.8

CVE-2018-7809: schneider electric se embedded web servers in all modicon m340, premium, quantum plcs and bmxnor0200

CVSS: 9.8v3.0CriticalModified
Published 30-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-7809 is a critical (CVSS 9.8) vulnerability in schneider electric se embedded web servers in all modicon m340, premium, quantum plcs and bmxnor0200. EPSS estimates a 2.47% chance of exploitation in the next 30 days, higher than 84.2% 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 · v3.0 (NVD)
EPSS score
2.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 30-11-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the password delete function of the web server.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.47%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.47% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (tenable.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Schneider electric se1 product

1 vendor · 1 product

References

2 links