FKIE_CVE-2026-20421
Vulnerability from fkie_nvd - Published: 2026-02-02 09:15 - Updated: 2026-02-03 21:23
Severity ?
Summary
In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738293; Issue ID: MSV-5922.
References
| URL | Tags | ||
|---|---|---|---|
| security@mediatek.com | https://corp.mediatek.com/product-security-bulletin/February-2026 | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mediatek | nr15 | - | |
| mediatek | mt2735 | - | |
| mediatek | mt6833 | - | |
| mediatek | mt6853 | - | |
| mediatek | mt6855 | - | |
| mediatek | mt6873 | - | |
| mediatek | mt6875 | - | |
| mediatek | mt6877 | - | |
| mediatek | mt6880 | - | |
| mediatek | mt6883 | - | |
| mediatek | mt6885 | - | |
| mediatek | mt6889 | - | |
| mediatek | mt6890 | - | |
| mediatek | mt6891 | - | |
| mediatek | mt6893 | - | |
| mediatek | mt8791 | - |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E30A2D2E-6A72-4070-A471-EEE75F7D07F2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7F1D09FC-5BE9-4B23-82F1-3C6EAC5711A6",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9814939B-F05E-4870-90C0-7C0F6BAAEB39",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*",
"matchCriteriaId": "366F1912-756B-443E-9962-224937DD7DFB",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*",
"matchCriteriaId": "89AFEE24-7AAD-4EDB-8C3E-EDBA3240730A",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F6B8A36E-C5FB-44AE-A1C3-50EBF4C68F6B",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:*",
"matchCriteriaId": "80BDC5EC-E822-4BC7-8C0D-E8AD8396E8FE",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7CA9352F-E9BD-4656-9B7C-4AFEE2C78E58",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*",
"matchCriteriaId": "68CF4A7A-3136-4C4C-A795-81323896BE11",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*",
"matchCriteriaId": "15E2EC3F-9FB3-488B-B1C1-2793A416C755",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*",
"matchCriteriaId": "DD64413C-C774-4C4F-9551-89E1AA9469EE",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*",
"matchCriteriaId": "3B787DC3-8E5A-4968-B20B-37B6257FAAE2",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*",
"matchCriteriaId": "171D1C08-F055-44C0-913C-AA2B73AF5B72",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:*",
"matchCriteriaId": "D8E91CA4-CA5B-40D1-9A96-2B875104BCF4",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*",
"matchCriteriaId": "213B5C7F-D965-4312-9CDF-4F06FA77D401",
"vulnerable": false
},
{
"criteria": "cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9CD2C3EC-B62D-4616-964F-FDBE5B14A449",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738293; Issue ID: MSV-5922."
}
],
"id": "CVE-2026-20421",
"lastModified": "2026-02-03T21:23:50.483",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2026-02-02T09:15:57.257",
"references": [
{
"source": "security@mediatek.com",
"tags": [
"Vendor Advisory"
],
"url": "https://corp.mediatek.com/product-security-bulletin/February-2026"
}
],
"sourceIdentifier": "security@mediatek.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "security@mediatek.com",
"type": "Secondary"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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…