CVE-2021-22731 (GCVE-0-2021-22731)
Vulnerability from cvelistv5 – Published: 2021-05-26 19:19 – Updated: 2024-08-03 18:51
VLAI
EPSS
VEX
Summary
Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker.
Severity
9.8 (Critical)
CWE
- CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://download.schneider-electric.com/files?p_D… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior |
Affected:
Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T18:51:06.977Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-640",
"description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-05-26T19:19:23.000Z",
"orgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb",
"shortName": "schneider"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cybersecurity@schneider-electric.com",
"ID": "CVE-2021-22731",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior",
"version": {
"version_data": [
{
"version_value": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01",
"refsource": "MISC",
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb",
"assignerShortName": "schneider",
"cveId": "CVE-2021-22731",
"datePublished": "2021-05-26T19:19:23.000Z",
"dateReserved": "2021-01-06T00:00:00.000Z",
"dateUpdated": "2024-08-03T18:51:06.977Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-22731",
"date": "2026-10-01",
"epss": "0.014",
"percentile": "0.71513"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior"
}
]
}
],
"source": "cybersecurity@se.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesp083f23g0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DE56838D-64AB-46F1-BD5F-1A758FFEA86F",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesp083f23g0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "76189346-40F5-4AD0-BF60-4ECD6FA3F5C4",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesp083f23g0t_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6EE8E5A5-31D2-4551-BF04-6CF866C72E48",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesp083f23g0t:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1062C777-E64F-4DB7-B74B-87AB50DC00A9",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm043f23f0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "3CB244B6-6C64-459C-8829-441CA612AE87",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm043f23f0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0A1CFDBB-21EF-4627-B2A2-23BF4AF371B3",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm053f1cu0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2DAFBA5A-B9D1-4F15-AF1A-5B0D63A2E66F",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm053f1cu0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "902BE29F-EBC8-4148-B963-C18B97A01B48",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm063f2cu0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5BA42014-91C2-4939-A227-8A35D49C9046",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm063f2cu0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EDA5F865-A2D4-4EC5-A8BE-ED7D6FE04594",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm053f1cs0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8DF47338-DCD8-4446-83A8-3BF3ED31E631",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm053f1cs0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0D0B52D7-CD51-4193-8671-174551E5DABC",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm063f2cs0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5C47F14D-8F92-41C6-AC3D-DE337EBC2329",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm063f2cs0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A5CFEBC9-3269-45BF-83C9-3E5C98D377B1",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm083f23f0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C2753ECF-8BE6-4D01-BCA6-08670D029B64",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm083f23f0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "92C8921B-5F6E-4760-B46B-49A652CA3A75",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm103f2cu0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B731B68D-5830-4974-A8E7-A90A6BD9F922",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm103f2cu0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "AC392C4A-0CD6-442F-BC05-0AB70999D0C2",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm083f23f0h_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4430F231-4759-403E-8DD1-3EB92F56B5D1",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm083f23f0h:-:*:*:*:*:*:*:*",
"matchCriteriaId": "B869FB07-9FEE-45E6-B48D-9DFF7D773DD3",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm103f2cu0h_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D9D00737-1BE3-4CDE-9910-6CBA5F4846BD",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm103f2cu0h:-:*:*:*:*:*:*:*",
"matchCriteriaId": "6DFEBD24-D136-4DD7-B834-008FD707AFBE",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm103f2cs0h_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "37BAF0C6-50C8-43FB-A80A-56700BE1063C",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm103f2cs0h:-:*:*:*:*:*:*:*",
"matchCriteriaId": "468C59AC-C017-4B54-B400-769D5A7B0711",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm123f2lg0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B38FA7F5-DC67-4F9B-B2B1-A1D3F42C30A7",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm123f2lg0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "833B82C6-C621-4E41-A80F-A4AB806AB07A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm093f1cu0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7DFDE537-2D8F-4F2F-B641-102E60663C84",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm093f1cu0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8C09DCE5-2128-4A17-9187-AC0FCE111446",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm093f1cs0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "78CCA9C0-277A-4AE2-9FDD-6992F1DC7492",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm093f1cs0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "375DDEF7-9AAF-4973-B72C-BFAB4CF46F5B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:mcsesm103f2cs0_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FD204C41-8EEA-4847-9712-AA5BBEA5CDEF",
"versionEndExcluding": "8.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:mcsesm103f2cs0:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CF26B84A-0412-4C7A-B96C-9220E21C7A65",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad del Mecanismo de Recuperaci\u00f3n de Contrase\u00f1a d\u00e9bil para Contrase\u00f1a Olvidada en Modicon Managed Switch MCSESM* y MCSESP* versiones V8.21 y anteriores, lo que podr\u00eda causar un cambio de contrase\u00f1a no autorizada mediante protocolo HTTP / HTTPS cuando la informaci\u00f3n b\u00e1sica del usuario es conocida por un atacante remoto"
}
],
"id": "CVE-2021-22731",
"lastModified": "2026-06-17T03:37:40.280",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-05-26T20:15:08.927",
"references": [
{
"source": "cybersecurity@se.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-01"
}
],
"sourceIdentifier": "cybersecurity@se.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-640"
}
],
"source": "cybersecurity@se.com",
"type": "Secondary"
}
]
}
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…