CVE-2018-7809

mediumpriority · track · 40EPSS 0.025 · 84 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.47% (84th) EPSS

CVSS 6.4 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-26

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

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.8

v2.06.4mediumAV:N/AC:L/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Lsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-640USprimaryCWE-620US

affected products (9)

Products and version ranges known to be affected.

Schneider Electric SE Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200≤ Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200enisa_euvdEU
Schneider Electric Modicon BMXNOR0200all versionsfstec_bduRU
Schneider Electric Modicon M340all versionsfstec_bduRU
Schneider Electric Modicon Premiumall versionsfstec_bduRU
Schneider Electric Modicon Quantumall versionsfstec_bduRU
schneider-electric modicom bmxnor0200h firmwareall versionsnvdUScpe:2.3:o:schneider-electric:modicom_bmxnor0200h_firmware:*:*:*:*:*:*:*:*
schneider-electric modicom m340 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:modicom_m340_firmware:*:*:*:*:*:*:*:*
schneider-electric modicom premium firmwareall versionsnvdUScpe:2.3:o:schneider-electric:modicom_premium_firmware:*:*:*:*:*:*:*:*
schneider-electric modicom quantum firmwareall versionsnvdUScpe:2.3:o:schneider-electric:modicom_quantum_firmware:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2018-11-30modified 2026-06-17

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+361 more

references (7)

External citations — patches, advisories, analysis.

scry

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