CVE-2026-20483 (GCVE-0-2026-20483)
Vulnerability from cvelistv5 – Published: 2026-08-03 02:05 – Updated: 2026-08-05 03:56
VLAI
EPSS
VEX
Summary
In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6739
Affected: MT6761 Affected: MT6765 Affected: MT6768 Affected: MT6781 Affected: MT6789 Affected: MT6833 Affected: MT6835 Affected: MT6853 Affected: MT6855 Affected: MT6877 Affected: MT6878 Affected: MT6879 Affected: MT6883 Affected: MT6885 Affected: MT6886 Affected: MT6889 Affected: MT6893 Affected: MT6895 Affected: MT6897 Affected: MT6983 Affected: MT6985 Affected: MT6989 Affected: MT6991 Affected: MT6993 Affected: MT8766 Affected: MT8766R Affected: MT8768 Affected: MT8775 Affected: MT8781 Affected: MT8792 Affected: MT8796 Affected: MT8873 Affected: MT8883 Affected: MT8893 |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-20483",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-04T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T03:56:53.337Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MediaTek chipset",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "MT6739"
},
{
"status": "affected",
"version": "MT6761"
},
{
"status": "affected",
"version": "MT6765"
},
{
"status": "affected",
"version": "MT6768"
},
{
"status": "affected",
"version": "MT6781"
},
{
"status": "affected",
"version": "MT6789"
},
{
"status": "affected",
"version": "MT6833"
},
{
"status": "affected",
"version": "MT6835"
},
{
"status": "affected",
"version": "MT6853"
},
{
"status": "affected",
"version": "MT6855"
},
{
"status": "affected",
"version": "MT6877"
},
{
"status": "affected",
"version": "MT6878"
},
{
"status": "affected",
"version": "MT6879"
},
{
"status": "affected",
"version": "MT6883"
},
{
"status": "affected",
"version": "MT6885"
},
{
"status": "affected",
"version": "MT6886"
},
{
"status": "affected",
"version": "MT6889"
},
{
"status": "affected",
"version": "MT6893"
},
{
"status": "affected",
"version": "MT6895"
},
{
"status": "affected",
"version": "MT6897"
},
{
"status": "affected",
"version": "MT6983"
},
{
"status": "affected",
"version": "MT6985"
},
{
"status": "affected",
"version": "MT6989"
},
{
"status": "affected",
"version": "MT6991"
},
{
"status": "affected",
"version": "MT6993"
},
{
"status": "affected",
"version": "MT8766"
},
{
"status": "affected",
"version": "MT8766R"
},
{
"status": "affected",
"version": "MT8768"
},
{
"status": "affected",
"version": "MT8775"
},
{
"status": "affected",
"version": "MT8781"
},
{
"status": "affected",
"version": "MT8792"
},
{
"status": "affected",
"version": "MT8796"
},
{
"status": "affected",
"version": "MT8873"
},
{
"status": "affected",
"version": "MT8883"
},
{
"status": "affected",
"version": "MT8893"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-03T02:05:45.948Z",
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek"
},
"references": [
{
"url": "https://www.mediatek.com/product-security-bulletin/August-2026"
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"assignerShortName": "MediaTek",
"cveId": "CVE-2026-20483",
"datePublished": "2026-08-03T02:05:45.948Z",
"dateReserved": "2025-11-03T01:30:59.021Z",
"dateUpdated": "2026-08-05T03:56:53.337Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-20483",
"date": "2026-09-21",
"epss": "0.00126",
"percentile": "0.02617"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "MediaTek chipset",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "MT6739"
},
{
"status": "affected",
"version": "MT6761"
},
{
"status": "affected",
"version": "MT6765"
},
{
"status": "affected",
"version": "MT6768"
},
{
"status": "affected",
"version": "MT6781"
},
{
"status": "affected",
"version": "MT6789"
},
{
"status": "affected",
"version": "MT6833"
},
{
"status": "affected",
"version": "MT6835"
},
{
"status": "affected",
"version": "MT6853"
},
{
"status": "affected",
"version": "MT6855"
},
{
"status": "affected",
"version": "MT6877"
},
{
"status": "affected",
"version": "MT6878"
},
{
"status": "affected",
"version": "MT6879"
},
{
"status": "affected",
"version": "MT6883"
},
{
"status": "affected",
"version": "MT6885"
},
{
"status": "affected",
"version": "MT6886"
},
{
"status": "affected",
"version": "MT6889"
},
{
"status": "affected",
"version": "MT6893"
},
{
"status": "affected",
"version": "MT6895"
},
{
"status": "affected",
"version": "MT6897"
},
{
"status": "affected",
"version": "MT6983"
},
{
"status": "affected",
"version": "MT6985"
},
{
"status": "affected",
"version": "MT6989"
},
{
"status": "affected",
"version": "MT6991"
},
{
"status": "affected",
"version": "MT6993"
},
{
"status": "affected",
"version": "MT8766"
},
{
"status": "affected",
"version": "MT8766R"
},
{
"status": "affected",
"version": "MT8768"
},
{
"status": "affected",
"version": "MT8775"
},
{
"status": "affected",
"version": "MT8781"
},
{
"status": "affected",
"version": "MT8792"
},
{
"status": "affected",
"version": "MT8796"
},
{
"status": "affected",
"version": "MT8873"
},
{
"status": "affected",
"version": "MT8883"
},
{
"status": "affected",
"version": "MT8893"
}
]
}
],
"source": "security@mediatek.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8893_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8E905861-38DA-4023-9751-2CD2EDE489EF",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8893:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CCFAADB1-C2B2-47A6-BB66-761B964E7DFB",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6739_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "14B94ECB-CAD4-499C-8959-1713FC5CE423",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6739:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7FA8A390-9F52-4CF3-9B45-936CE3E2B828",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6761_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "2493FB05-7723-4CDD-AC2A-8B21C4285436",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6761:-:*:*:*:*:*:*:*",
"matchCriteriaId": "F726F486-A86F-4215-AD93-7A07A071844A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6765_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "43327018-578C-4997-81B9-6DBD3679E40C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6765:-:*:*:*:*:*:*:*",
"matchCriteriaId": "43E779F6-F0A0-4153-9A1D-B715C3A2F80E",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6768_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "16EF9082-FC9B-4790-A79D-AA62C62E4B88",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6768:-:*:*:*:*:*:*:*",
"matchCriteriaId": "06CD97E1-8A76-48B4-9780-9698EF5A960F",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6781_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "23F92B7C-A5A3-4F32-B4BF-CBE706D79702",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6781:-:*:*:*:*:*:*:*",
"matchCriteriaId": "C4EEE021-6B2A-47A0-AC6B-55525A40D718",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6789_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "524AB96D-4C15-47A6-B276-6B873796E8F3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6789:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8B9B0D82-82C1-4A77-A016-329B99C45F49",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6833_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "BA0F3AD5-4D2B-4480-AA79-44EFD4E29348",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9814939B-F05E-4870-90C0-7C0F6BAAEB39",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6835_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "00B1D726-8183-4667-B46D-18EF110EA9D9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:*",
"matchCriteriaId": "19A63103-C708-48EC-B44D-5E465A6B79C5",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "3EAA5C86-701B-4116-8A63-EB89B3DC2B93",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*",
"matchCriteriaId": "366F1912-756B-443E-9962-224937DD7DFB",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E997ED4F-33F3-4508-9B12-99DBA0D845B2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*",
"matchCriteriaId": "89AFEE24-7AAD-4EDB-8C3E-EDBA3240730A",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "07F67D59-75F0-4056-BCCE-F7888912CAB3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7CA9352F-E9BD-4656-9B7C-4AFEE2C78E58",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6878_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "207954E6-D413-4762-9F4A-3A147CFB4FE2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6878:-:*:*:*:*:*:*:*",
"matchCriteriaId": "855A8046-34ED-4891-ACE5-76AB10AC8D53",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6879_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "502901D0-8B2D-449A-A2D6-E8914D5D4239",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6879:-:*:*:*:*:*:*:*",
"matchCriteriaId": "704BE5CE-AE08-4432-A8B0-4C8BD62148AD",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "22321E12-7EB8-46B7-ABB6-23ACC1436EFD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*",
"matchCriteriaId": "15E2EC3F-9FB3-488B-B1C1-2793A416C755",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "8A6E25F4-C394-4830-8EC3-2AF0563F5032",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*",
"matchCriteriaId": "DD64413C-C774-4C4F-9551-89E1AA9469EE",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6886_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E10F9AFE-9F99-4B91-BF26-49E035FC8079",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:*",
"matchCriteriaId": "AF3E2B84-DAFE-4E11-B23B-026F719475F5",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CD17D854-2394-483D-B8E2-FDA1BC837DAD",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*",
"matchCriteriaId": "3B787DC3-8E5A-4968-B20B-37B6257FAAE2",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "0A272644-3BC4-438B-BAC0-DDF164BF4097",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*",
"matchCriteriaId": "213B5C7F-D965-4312-9CDF-4F06FA77D401",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6895_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "110CBA4A-26A6-4E4E-A0C6-35FA02A6D4AF",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E0CA45C9-7BFE-4C93-B2AF-B86501F763AB",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6897_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A04EA650-730F-4E5D-A0E0-90570CACDD5E",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6897:-:*:*:*:*:*:*:*",
"matchCriteriaId": "2A7D8055-F4B6-41EE-A078-11D56285AB66",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6983_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "967E956F-07B4-4957-9C84-DDB5C38E5E69",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6983:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EB6B9A26-F8A1-4322-AA4E-CDF8F7D99000",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6985_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CA30A145-D98E-4DA7-84C7-377402951190",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:*",
"matchCriteriaId": "EA72CCD1-DEA2-48EB-8781-04CFDD41AAEE",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6989_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "E495B8EB-C9B5-4F32-AEE2-D2C41C0B292B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:*",
"matchCriteriaId": "AD7DE6B2-66D9-4A3E-B15F-D56505559255",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6991_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "D9DD2119-39E8-4A9C-8E2A-8FB7F92A1001",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CBBB30DF-E963-4940-B742-F6801F68C3FC",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FAEB2240-FF37-4CBE-BBEF-8A8281153646",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*",
"matchCriteriaId": "57E92BE0-5E65-4770-8E1A-0E5D07A38164",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8766_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "215862D7-BF3D-4955-BCFF-48778190EEB5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8766:-:*:*:*:*:*:*:*",
"matchCriteriaId": "CE45F606-2E75-48BC-9D1B-99D504974CBF",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8766r_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "934CDBC2-33EC-4C78-8C82-711869C9CED5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8766r:-:*:*:*:*:*:*:*",
"matchCriteriaId": "738475DC-9FA8-4034-AB1F-F89C77CE7B41",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8768_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "303069C6-F031-4176-9465-46F4134BB423",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8768:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1CC6E254-11A9-49CE-83FE-6DAC23E7D7AA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8775_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "FAA319BC-2689-497C-8D7D-482CD2AD89A1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8775:-:*:*:*:*:*:*:*",
"matchCriteriaId": "DE5FB550-7264-4879-BAF9-6798949113AF",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7E2280E5-F903-4541-8404-9F789CEFF172",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:*",
"matchCriteriaId": "533284E5-C3AF-48D3-A287-993099DB2E41",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8792_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "AE904A76-14A2-41D5-86FF-BCA686342E85",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8792:-:*:*:*:*:*:*:*",
"matchCriteriaId": "336FC69E-E89F-4642-B6B9-8009D9A2BD52",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8796_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "6DC17C8D-377F-4343-BE7E-359224912061",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8796:-:*:*:*:*:*:*:*",
"matchCriteriaId": "DE933AD9-3A6F-421B-8AB3-C45F8DEA9548",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8873_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9D40337A-B78E-41CF-ADDC-A31190950F73",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:mediatek:mt8873:-:*:*:*:*:*:*:*",
"matchCriteriaId": "D6DD525F-7050-42BD-829D-1121698B8009",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:mediatek:mt8883_firmware:-:*:*:*:*:*:*:*",
"matchCriteriaId": "C5049DE8-5F0C-4E0D-85AE-F47CECE2DCE8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"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 Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243."
}
],
"id": "CVE-2026-20483",
"lastModified": "2026-08-19T17:01:03.747",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.5,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20483",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-04T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-03T03:16:43.430",
"references": [
{
"source": "security@mediatek.com",
"tags": [
"Vendor Advisory"
],
"url": "https://www.mediatek.com/product-security-bulletin/August-2026"
}
],
"sourceIdentifier": "security@mediatek.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "security@mediatek.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-20483",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-03T19:41:27.539265Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-03T19:41:52.177Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MediaTek chipset",
"vendor": "MediaTek, Inc.",
"versions": [
{
"status": "affected",
"version": "MT6739"
},
{
"status": "affected",
"version": "MT6761"
},
{
"status": "affected",
"version": "MT6765"
},
{
"status": "affected",
"version": "MT6768"
},
{
"status": "affected",
"version": "MT6781"
},
{
"status": "affected",
"version": "MT6789"
},
{
"status": "affected",
"version": "MT6833"
},
{
"status": "affected",
"version": "MT6835"
},
{
"status": "affected",
"version": "MT6853"
},
{
"status": "affected",
"version": "MT6855"
},
{
"status": "affected",
"version": "MT6877"
},
{
"status": "affected",
"version": "MT6878"
},
{
"status": "affected",
"version": "MT6879"
},
{
"status": "affected",
"version": "MT6883"
},
{
"status": "affected",
"version": "MT6885"
},
{
"status": "affected",
"version": "MT6886"
},
{
"status": "affected",
"version": "MT6889"
},
{
"status": "affected",
"version": "MT6893"
},
{
"status": "affected",
"version": "MT6895"
},
{
"status": "affected",
"version": "MT6897"
},
{
"status": "affected",
"version": "MT6983"
},
{
"status": "affected",
"version": "MT6985"
},
{
"status": "affected",
"version": "MT6989"
},
{
"status": "affected",
"version": "MT6991"
},
{
"status": "affected",
"version": "MT6993"
},
{
"status": "affected",
"version": "MT8766"
},
{
"status": "affected",
"version": "MT8766R"
},
{
"status": "affected",
"version": "MT8768"
},
{
"status": "affected",
"version": "MT8775"
},
{
"status": "affected",
"version": "MT8781"
},
{
"status": "affected",
"version": "MT8792"
},
{
"status": "affected",
"version": "MT8796"
},
{
"status": "affected",
"version": "MT8873"
},
{
"status": "affected",
"version": "MT8883"
},
{
"status": "affected",
"version": "MT8893"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-03T02:05:45.948Z",
"orgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"shortName": "MediaTek"
},
"references": [
{
"url": "https://www.mediatek.com/product-security-bulletin/August-2026"
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "ee979b05-11f8-4f25-a7e0-a1fa9c190374",
"assignerShortName": "MediaTek",
"cveId": "CVE-2026-20483",
"datePublished": "2026-08-03T02:05:45.948Z",
"dateReserved": "2025-11-03T01:30:59.021Z",
"dateUpdated": "2026-08-03T19:41:55.611Z",
"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…