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CVE detail

CVE-2018-7789

An Improper Check for Unusual or Exceptional Conditions vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to remotely reboot Modicon M221 using crafted programing protocol frames.

CVSS 7.5 · HighBuzz score 20.4

Buzz score

Why this CVE is surfacing

Buzz score total 20.4

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 13.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
6.5
2 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
3 source links · newest first
  • While the Common Vulnerability Scoring System (CVSS) can be useful for rating vulnerabilities, the scores assigned to flaws affecting industrial control systems (ICS) may be misleading, which can have negative consequences for organizations, particularly if they rely solely on CVSS for prioritizing patches.

    newswww.securityweek.comNov 16, 2018, 5:59 AM
  • A vulnerability in the Schneider Electric Modicon M221, a programmable logic controller (PLC) deployed in commercial industrial facilities worldwide, can be exploited to remotely disconnected the device from communicating in the ICS network. Schneider Electric Modicon M221 “An unauthorized user could have easily exploited this vulnerability to execute a synchronized attack and cause a number of these controllers to stop communicating. This type of unauthorized action would allow a cyber-attacker to massively disconnect the effected … More →

    newswww.helpnetsecurity.comSep 6, 2018, 2:05 PM
  • A vulnerability discovered in some of Schneider Electric’s Modicon programmable logic controllers (PLCs) may allow malicious actors to cause significant disruption to industrial control systems (ICS).

    newswww.securityweek.comSep 6, 2018, 11:25 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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