CVE-2021-30283
Status: ModifiedMedium (5.5)—
Possible denial of service due to improper handling of debug register trap from user applications in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 5.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.13%
- Percentile among all scored CVEs: 2
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (19)
Qualcomm — Qca6391 FirmwareQualcomm — Qcm6490 FirmwareQualcomm — Qcs6490 FirmwareQualcomm — Qrb5165 FirmwareQualcomm — Qrb5165n FirmwareQualcomm — Sd778g FirmwareQualcomm — Sd888 5G FirmwareQualcomm — Sm7325p FirmwareQualcomm — Wcd9370 FirmwareQualcomm — Wcd9375 FirmwareQualcomm — Wcd9380 FirmwareQualcomm — Wcd9385 FirmwareQualcomm — Wcn6750 FirmwareQualcomm — Wcn6850 FirmwareQualcomm — Wcn6851 FirmwareQualcomm — Wcn6855 FirmwareQualcomm — Wcn6856 FirmwareQualcomm — Wsa8830 FirmwareQualcomm — Wsa8835 Firmware
CWEs
- CWE-755
References
Raw JSON (NVD)
Show
{
"id": "CVE-2021-30283",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 2.1,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "product-security@qualcomm.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 4,
"exploitabilityScore": 2.5
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "product-security@qualcomm.com",
"affectedData": [
{
"vendor": "Qualcomm, Inc.",
"product": "Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile",
"versions": [
{
"status": "affected",
"version": "QCA6391, QCM6490, QCS6490, QRB5165, QRB5165N, SD778G, SD888 5G, SM7325P, WCD9370, WCD9375, WCD9380, WCD9385, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WSA8830, WSA8835"
}
]
}
]
}
],
"published": "2022-01-03T08:15:08.550",
"references": [
{
"url": "https://www.qualcomm.com/company/product-security/bulletins/december-2021-bulletin",
"tags": [
"Vendor Advisory"
],
"source": "product-security@qualcomm.com"
},
{
"url": "https://www.qualcomm.com/company/product-security/bulletins/december-2021-bulletin",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-755"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Possible denial of service due to improper handling of debug register trap from user applications in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile"
},
{
"lang": "es",
"value": "Una posible denegación de servicio debido al manejo inapropiado de la trampa de registro de depuración de las aplicaciones de usuario en Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile"
}
],
"lastModified": "2026-06-17T03:50:02.050",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "83B53119-1B2F-4978-B7F5-33B84BE73B68"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:qca6391:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6FEBC0C5-CAA1-475C-96C2-B8D24B2E4536"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ADD6D51E-5787-42A6-8A02-4EBBAFFF9C94"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:qcm6490:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "99AA0291-B822-4CAD-BA17-81B632FC3FEF"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:qcs6490_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "403AE561-6C9E-49F3-A5D6-C48DDD51D663"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:qcs6490:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6FAC140F-FC5E-4C88-B777-7F5EBF49A695"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "89A1AAD0-9336-4657-8E1E-74E8F490C06E"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:qrb5165:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "386F2F37-974B-40F2-9B23-ABD49C60E32D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:qrb5165n_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "97BB1EB7-D194-4FE2-B4F6-A7A52F344DDE"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:qrb5165n:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "AA2C90E7-0F3A-43BB-ABF7-63CEA7A85ADA"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:sd778g_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "13286F2B-0FD1-474A-A632-1AA19B110536"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:sd778g:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "F6EA3F98-0F45-44D3-9305-4F548B437011"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:sd888_5g_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B991D515-9072-488F-B338-D7776C70FB62"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:sd888_5g:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3F65BF0A-CC8F-4A4B-9FD4-7FC7066424F6"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:sm7325p_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4BEC725F-19B1-4078-B13D-CE624BE23344"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:sm7325p:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "4EA43E38-A12D-49C3-B05C-A2AF07ED2710"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1295D869-F4DD-4766-B4AA-3513752F43B4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcd9370:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B98784DC-3143-4D38-AD28-DBBDCCAB4272"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "34143ABA-7D09-429F-A65C-3A33438BF62C"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcd9375:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "9D56DFE3-5EF1-4B23-BBD5-0203FBF9CCEC"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "70292B01-617F-44AD-AF77-1AFC1450523D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcd9380:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "FA94C6D6-85DB-4031-AAF4-C399019AE16D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "92B17201-8185-47F1-9720-5AB4ECD11B22"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcd9385:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E1FA2EB9-416F-4D69-8786-386CC73978AE"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcn6750_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F8EE21BA-7178-4D69-852D-2322844FC6B9"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcn6750:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E9BACB28-F6EA-445A-B74F-0C3881FE59CB"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcn6850_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3293739B-53D5-48C1-BC3A-FAA74D6C7954"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcn6850:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E650C510-037F-47DB-A486-EBF871C73278"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcn6851_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DD031A8D-A48A-4363-8C00-C1FF5458D0FB"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcn6851:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "64F5D7CA-6F31-4842-AC66-EB975C19C83D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcn6855_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "180EB150-C114-429D-941F-9B99CDA4F810"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcn6855:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "93BA62AF-3555-463A-8B51-76F07BF0B87E"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wcn6856_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "54C616C5-6480-4FE0-9A1C-08026CCB08D8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wcn6856:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "7D8E02BA-3A7E-4B13-A8D7-20FD0FAE3187"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "11B69595-E488-4590-A150-CE5BE08B5E13"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wsa8830:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BF680174-5FA6-47D9-8EAB-CC2A37A7BD42"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F80BC68E-7476-4A40-9F48-53722FE9A5BF"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:qualcomm:wsa8835:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6B36F4B2-BAA3-45AD-9967-0EB482C99708"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "product-security@qualcomm.com"
}