CVE-2021-22787

mediumpriority · track · 30EPSS 0.011 · 65 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.07% (65th) EPSS

CVSS 5 · medium

Is it mine?

30 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A CWE-20: Improper Input Validation vulnerability exists that could cause denial of service of the device when an attacker sends a specially crafted HTTP request to the web server of the device. Affected Product: Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.06.1mediumAV:A/AC:L/Au:N/C:N/I:N/A:Csecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (30)

Products and version ranges known to be affected.

n/a Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)≤ Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)enisa_euvdEU
Schneider Electric Modicon M340≤ BMXP342020fstec_bduRU
Schneider Electric Modicon M340 CPU BMXP34≤ 3.40fstec_bduRU
Schneider Electric Modicon M340 Ethernet Communication modules BMXNOE0100 (H)all versionsfstec_bduRU
Schneider Electric Modicon M340 Ethernet Communication modules BMXNOE0110 (H)all versionsfstec_bduRU
Schneider Electric Modicon M340 Ethernet TCP/IP network module BMXNOC0401all versionsfstec_bduRU
Schneider Electric Modicon M340 X80 Ethernet Communication modules BMXNOR0200H RTU≤ 1.70 IR23fstec_bduRU
Schneider Electric Modicon Premium processors with integrated Ethernet COPRO TSXP574634all versionsfstec_bduRU
Schneider Electric Modicon Premium processors with integrated Ethernet COPRO TSXP575634all versionsfstec_bduRU
Schneider Electric Modicon Premium processors with integrated Ethernet COPRO TSXP576634all versionsfstec_bduRU
Schneider Electric Modicon Quantum Communication Modules 140NOC77101all versionsfstec_bduRU
Schneider Electric Modicon Quantum Communication Modules 140NOC78x00all versionsfstec_bduRU
Schneider Electric Modicon Quantum communication modules 140NOE771x1all versionsfstec_bduRU
Schneider Electric Modicon Quantum processors with integrated Ethernet COPRO 140CPU65xxxxxall versionsfstec_bduRU
Schneider Electric TSXETY4103all versionsfstec_bduRU
Schneider Electric TSXETY5103all versionsfstec_bduRU
schneider-electric 140cpu65150 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:140cpu65150_firmware:*:*:*:*:*:*:*:*
schneider-electric 140noc77101 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:140noc77101_firmware:*:*:*:*:*:*:*:*
schneider-electric 140noc78x00 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:140noc78x00_firmware:*:*:*:*:*:*:*:*
schneider-electric 140noe771x1 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:140noe771x1_firmware:*:*:*:*:*:*:*:*

showing 20 of 30

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 2022-02-11modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

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