CVE-2025-20704 (GCVE-0-2025-20704)
Vulnerability from cvelistv5 – Published: 2025-09-01 05:12 – Updated: 2026-02-26 17:49
VLAI
EPSS
VEX
Summary
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-03 03:55 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| MediaTek, Inc. | MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883 |
Affected:
Modem NR17, NR17R
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-20704",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-03T03:55:29.707746Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T17:49:56.712Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "Modem NR17, NR17R"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-09-01T05:12:19.494Z",
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek"
},
"references": [
{
"url": "https://corp.mediatek.com/product-security-bulletin/September-2025"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"assignerShortName": "MediaTek",
"cveId": "CVE-2025-20704",
"datePublished": "2025-09-01T05:12:19.494Z",
"dateReserved": "2024-11-01T01:21:50.383Z",
"dateUpdated": "2026-02-26T17:49:56.712Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-20704",
"date": "2026-09-20",
"epss": "0.00305",
"percentile": "0.23444"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "Modem NR17, NR17R"
}
]
}
],
"source": "security@mediatek.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:*",
"matchCriteriaId": "66F8874B-DBF1-4A67-8ADF-4654AB56B6A8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:mediatek:nr17r:-:*:*:*:*:*:*:*",
"matchCriteriaId": "BC63582A-F9A5-4450-A263-CE1FD4B4F3AC",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6813:-:*:*:*:*:*:*:*",
"matchCriteriaId": "66F9EAE4-F1D7-46DB-AA2A-0290F6EF0501",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*",
"matchCriteriaId": "19A63103-C708-48EC-B44D-5E465A6B79C5",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6835t:-:*:*:*:*:*:*:*",
"matchCriteriaId": "C7FE7DBA-479C-402B-8485-9D14E70F25EB",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*",
"matchCriteriaId": "855A8046-34ED-4891-ACE5-76AB10AC8D53",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6878m:-:*:*:*:*:*:*:*",
"matchCriteriaId": "483B6FB0-D683-4F3C-BA5B-6C9852179854",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*",
"matchCriteriaId": "2A7D8055-F4B6-41EE-A078-11D56285AB66",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*",
"matchCriteriaId": "C6E9F80F-9AC9-41E0-BB14-9DB6F14B62CD",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CBBB30DF-E963-4940-B742-F6801F68C3FC",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8676:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EE302F6F-170E-4350-A8F4-65BE0C50CB78",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:*",
"matchCriteriaId": "152A5F3D-8004-4649-BDB1-E6F0798AF1CB",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:*",
"matchCriteriaId": "336FC69E-E89F-4642-B6B9-8009D9A2BD52",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8863:-:*:*:*:*:*:*:*",
"matchCriteriaId": "77E0D738-F0B9-468F-8A10-204F498320BC",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8873:-:*:*:*:*:*:*:*",
"matchCriteriaId": "D6DD525F-7050-42BD-829D-1121698B8009",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8883:-:*:*:*:*:*:*:*",
"matchCriteriaId": "23DD8281-FEB4-4E23-8DDA-680FF895F12E",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502."
}
],
"id": "CVE-2025-20704",
"lastModified": "2026-06-17T08:41:52.623",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-20704",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-03T03:55:29.707746Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-09-01T06:15:34.630",
"references": [
{
"source": "security@mediatek.com",
"tags": [
"Vendor Advisory"
],
"url": "https://corp.mediatek.com/product-security-bulletin/September-2025"
}
],
"sourceIdentifier": "security@mediatek.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "security@mediatek.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T08:53:43+00:00",
"cve": "CVE-2025-20704",
"id": "CVE-2025-20704",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2025-20704",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-20704.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-20704",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-03T03:55:29.707746Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-09-02T13:07:14.255Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "Modem NR17, NR17R"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-09-01T05:12:19.494Z",
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek"
},
"references": [
{
"url": "https://corp.mediatek.com/product-security-bulletin/September-2025"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"assignerShortName": "MediaTek",
"cveId": "CVE-2025-20704",
"datePublished": "2025-09-01T05:12:19.494Z",
"dateReserved": "2024-11-01T01:21:50.383Z",
"dateUpdated": "2026-02-17T14:29:19.357Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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…
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…