CVE-2023-35140 (GCVE-0-2023-35140)
Vulnerability from cvelistv5 – Published: 2023-11-07 01:44 – Updated: 2024-09-04 18:54
VLAI
EPSS
VEX
Summary
The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-04 18:36 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zyxel.com/global/en/support/security-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Zyxel | GS1900-24EP firmware |
Affected:
V2.70(ABTO.5)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T16:23:59.139Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-35140",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-04T18:36:49.739422Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-04T18:54:22.844Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "GS1900-24EP firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "V2.70(ABTO.5)"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version\u0026nbsp;V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device."
}
],
"value": "The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version\u00a0V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-269",
"description": "CWE-269 Improper Privilege Management",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-07T01:44:18.953Z",
"orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
"shortName": "Zyxel"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
"assignerShortName": "Zyxel",
"cveId": "CVE-2023-35140",
"datePublished": "2023-11-07T01:44:18.953Z",
"dateReserved": "2023-06-14T06:26:48.564Z",
"dateUpdated": "2024-09-04T18:54:22.844Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-35140",
"date": "2026-11-01",
"epss": "0.00173",
"percentile": "0.06702"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "GS1900-24EP firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "V2.70(ABTO.5)"
}
]
}
],
"source": "security@zyxel.com.tw"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-48hpv2_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "AA14022B-4409-4725-BB26-2E85DC8BA02A",
"versionEndIncluding": "2.70\\(abtq.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-48hpv2:-:*:*:*:*:*:*:*",
"matchCriteriaId": "BC74C679-6D22-47E4-AE8A-2647B1AA4276",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1BB5CC06-9693-4951-BB8D-70CAF93C805E",
"versionEndIncluding": "2.70\\(aahn.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-48:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CFB7D4BF-7D17-48D3-990D-4BADAC8BD868",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-24hpv2_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6F9A3EA9-5893-46AC-AECB-DE0A30DD0498",
"versionEndIncluding": "2.70\\(abtp.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-24hpv2:-:*:*:*:*:*:*:*",
"matchCriteriaId": "512D9A91-8DA7-47F1-AC77-AF743F99BFF3",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-24ep_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4C96ECDC-3D00-4AA9-8E72-78ABC672D637",
"versionEndIncluding": "2.70\\(abto.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-24ep:-:*:*:*:*:*:*:*",
"matchCriteriaId": "B22AA8B1-11E2-408F-A1F6-0F8AF32AB131",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E14B4311-5435-41DF-B0AC-32156D386D41",
"versionEndIncluding": "2.70\\(aahk.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-24e:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A6456AD6-8A1D-4D3D-AC1A-ABE442242B1B",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EE64CC41-E4E4-4FED-88B9-FEC05FA7B0B6",
"versionEndIncluding": "2.70\\(aahl.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-24:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F4F55299-70D5-4CE1-A1EC-D79B469B94F7",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8A68FFD4-FEFF-49F0-9091-9B2E5F0C707C",
"versionEndIncluding": "2.70\\(aahj.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-16:-:*:*:*:*:*:*:*",
"matchCriteriaId": "5078F7A5-D03B-4D3A-9C19-57DFF4D6BF7A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "AC5EBAF1-3805-4332-9573-70E119244A71",
"versionEndIncluding": "2.70\\(aazi.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-10hp:-:*:*:*:*:*:*:*",
"matchCriteriaId": "89201505-07AF-4F9C-9304-46F2707DB9B4",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7C6E4B8A-4EC0-4BF6-81FE-40B5AA4B68A8",
"versionEndIncluding": "2.70\\(aahi.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-8hp:-:*:*:*:*:*:*:*",
"matchCriteriaId": "27602862-EFB7-402B-994E-254A0B210820",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "13BF4CC3-F378-41D6-AAE1-4A5FA9C176C3",
"versionEndIncluding": "2.70\\(aahh.5\\)",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:zyxel:gs1900-8:-:*:*:*:*:*:*:*",
"matchCriteriaId": "51D33F50-B5A4-4AEF-972C-7FF089C21D52",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version\u00a0V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device."
},
{
"lang": "es",
"value": "La vulnerabilidad de administraci\u00f3n de privilegios inadecuada en Zyxel GS1900-24EP switch firmware versi\u00f3n V2.70 (ABTO.5) podr\u00eda permitir que un usuario local autenticado con acceso de solo lectura modifique la configuraci\u00f3n del sistema en un dispositivo vulnerable."
}
],
"id": "CVE-2023-35140",
"lastModified": "2026-06-17T06:04:28.457",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "security@zyxel.com.tw",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-35140",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-04T18:36:49.739422Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-11-07T05:15:12.077",
"references": [
{
"source": "security@zyxel.com.tw",
"tags": [
"Not Applicable",
"Vendor Advisory"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Not Applicable",
"Vendor Advisory"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
}
],
"sourceIdentifier": "security@zyxel.com.tw",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-269"
}
],
"source": "security@zyxel.com.tw",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-28T22:55:55+00:00",
"cve": "CVE-2023-35140",
"id": "CVE-2023-35140",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2023-35140",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-35140.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T16:23:59.139Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-35140",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-04T18:36:49.739422Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-04T18:54:16.600Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "GS1900-24EP firmware",
"vendor": "Zyxel",
"versions": [
{
"status": "affected",
"version": "V2.70(ABTO.5)"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version\u0026nbsp;V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device."
}
],
"value": "The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version\u00a0V2.70(ABTO.5) could allow an authenticated local user with read-only access to modify system settings on a vulnerable device."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-269",
"description": "CWE-269 Improper Privilege Management",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-07T01:44:18.953Z",
"orgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
"shortName": "Zyxel"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-improper-privilege-management-vulnerability-in-gs1900-series-switches"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "96e50032-ad0d-4058-a115-4d2c13821f9f",
"assignerShortName": "Zyxel",
"cveId": "CVE-2023-35140",
"datePublished": "2023-11-07T01:44:18.953Z",
"dateReserved": "2023-06-14T06:26:48.564Z",
"dateUpdated": "2024-09-04T18:54:22.844Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
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.