SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-30306

Possible buffer over read due to improper buffer allocation for file length passed from user space in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

HIGH 7.1EPSS 0.15%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Possible buffer over read due to improper buffer allocation for file length passed from user space in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile

CVSS 3.1
7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS
0.15% probability · 4th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-125
Affected
qualcomm/apq8053 firmware · qualcomm/msm8953 firmware · qualcomm/qca6174a firmware · qualcomm/qca6390 firmware · qualcomm/qca6391 firmware · qualcomm/qca6426 firmware · qualcomm/qca6574 firmware · qualcomm/qca6574a firmware · qualcomm/qca6574au firmware · qualcomm/qca6595au firmware · qualcomm/qca6696 firmware · qualcomm/qca9377 firmware · qualcomm/qcm6490 firmware · qualcomm/qcs6490 firmware · qualcomm/qrb5165 firmware · qualcomm/sa6145p firmware · qualcomm/sa6150p firmware · qualcomm/sa6155 firmware · qualcomm/sa6155p firmware · qualcomm/sa8145p firmware · +40 more
Source
product-security@qualcomm.com
EPSS trend
0%3%5%26 October 2026: 0.15%26 October 202626 October 2026

EPSS 0.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.