CVE-2021-30307
Possible denial of service due to improper validation of DNS response when DNS client requests...
Possible denial of service due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Possible denial of service due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT
- Record
CVE-2021-30307- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
EUVDEUVD-2021-17238
Possible denial of service due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT
- Record
EUVD-2021-17238- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vchm-32r9-6qh2
Possible denial of service due to improper validation of DNS response when DNS client requests...
Possible denial of service due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT
- Record
GHSA-vchm-32r9-6qh2- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
NVD
Possible denial of service due to improper validation of DNS response when DNS client requests with PTR, NAPTR or SRV query type in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT
- Record
CVE-2021-30307- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-617
- Updated
- 2026-11-02
Affected products
- qualcomm, inc. snapdragon auto, snapdragon compute, snapdragon connectivity, snapdragon consumer iot, snapdragon industrial iot
- qualcomm ar8035 firmware
- qualcomm csrb31024 firmware
- qualcomm qca6174a firmware
- qualcomm qca6390 firmware
- qualcomm qca6391 firmware
- qualcomm qca6426 firmware
- qualcomm qca6436 firmware
- qualcomm qca6564au firmware
- qualcomm qca6574a firmware
- qualcomm qca6574au firmware
- qualcomm qca6595au firmware
Show 75 moreShow less
- qualcomm qca6696 firmware
- qualcomm qca8081 firmware
- qualcomm qca8337 firmware
- qualcomm qca9377 firmware
- qualcomm qcm2290 firmware
- qualcomm qcm4290 firmware
- qualcomm qcm6490 firmware
- qualcomm qcs2290 firmware
- qualcomm qcs410 firmware
- qualcomm qcs4290 firmware
- qualcomm qcs610 firmware
- qualcomm qcs6490 firmware
- qualcomm qcx315 firmware
- qualcomm sa415m firmware
- qualcomm sa515m firmware
- qualcomm sa6145p firmware
- qualcomm sa6150p firmware
- qualcomm sa6155p firmware
- qualcomm sa8145p firmware
- qualcomm sa8150p firmware
- qualcomm sa8155p firmware
- qualcomm sa8195p firmware
- qualcomm sd460 firmware
- qualcomm sd480 firmware
- qualcomm sd662 firmware
- qualcomm sd665 firmware
- qualcomm sd675 firmware
- qualcomm sd678 firmware
- qualcomm sd690 5g firmware
- qualcomm sd720g firmware
- qualcomm sd730 firmware
- qualcomm sd750g firmware
- qualcomm sd765 firmware
- qualcomm sd765g firmware
- qualcomm sd768g firmware
- qualcomm sd778g firmware
- qualcomm sd7c firmware
- qualcomm sd865 5g firmware
- qualcomm sd870 firmware
- qualcomm sd888 5g firmware
- qualcomm sd888 firmware
- qualcomm sd 675 firmware
- qualcomm sd 8 gen1 5g firmware
- qualcomm sd 8cx gen2 firmware
- qualcomm sdx24 firmware
- qualcomm sdx55 firmware
- qualcomm sdx55m firmware
- qualcomm sdx65 firmware
- qualcomm sdxr2 5g firmware
- qualcomm sm6225 firmware
- qualcomm sm6250 firmware
- qualcomm sm6250p firmware
- qualcomm sm6375 firmware
- qualcomm sm7250p firmware
- qualcomm sm7315 firmware
- qualcomm sm7325p firmware
- qualcomm wcd9340 firmware
- qualcomm wcd9360 firmware
- qualcomm wcd9370 firmware
- qualcomm wcd9375 firmware
- qualcomm wcd9380 firmware
- qualcomm wcd9385 firmware
- qualcomm wcn3910 firmware
- qualcomm wcn3950 firmware
- qualcomm wcn3980 firmware
- qualcomm wcn3988 firmware
- qualcomm wcn3990 firmware
- qualcomm wcn3991 firmware
- qualcomm wcn6750 firmware
- qualcomm wcn6850 firmware
- qualcomm wcn6851 firmware
- qualcomm wcn6855 firmware
- qualcomm wcn6856 firmware
- qualcomm wsa8830 firmware
- qualcomm wsa8835 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-30307 is a high vulnerability (CVSS 7.5) in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Iot, Snapdragon Industrial Iot, published January 13, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.