CVE-2021-30307
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
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.57% probability · 47th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- 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 · 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 · +40 more
- Source
- product-security@qualcomm.com
EPSS 0.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.