SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-30344

Improper authorization of a replayed LTE security mode command can lead to a denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice &…

HIGH 7.5EPSS 0.61%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Improper authorization of a replayed LTE security mode command can lead to a denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

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
0.61% probability · 49th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
qualcomm/apq8009w firmware · qualcomm/apq8017 firmware · qualcomm/apq8053 firmware · qualcomm/apq8096au firmware · qualcomm/aqt1000 firmware · qualcomm/ar6003 firmware · qualcomm/ar8035 firmware · qualcomm/csrb31024 firmware · qualcomm/mdm8207 firmware · qualcomm/mdm9150 firmware · qualcomm/mdm9205 firmware · qualcomm/mdm9206 firmware · qualcomm/mdm9207 firmware · qualcomm/mdm9215 firmware · qualcomm/mdm9250 firmware · qualcomm/mdm9607 firmware · qualcomm/mdm9615 firmware · qualcomm/mdm9625 firmware · qualcomm/mdm9628 firmware · qualcomm/mdm9635m firmware · +40 more
Source
product-security@qualcomm.com
EPSS trend
0%3%5%26 October 2026: 0.61%26 October 202626 October 2026

EPSS 0.6% 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.