SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-43551

Cryptographic issue while performing attach with a LTE network, a rogue base station can skip the authentication phase and immediately send the Security Mode Command.

HIGH 7.5EPSS 0.26%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Cryptographic issue while performing attach with a LTE network, a rogue base station can skip the authentication phase and immediately send the Security Mode Command.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
0.26% probability · 17th percentile
CISA KEV
Not listed
Weakness
CWE-287
Affected
qualcomm/315 5g iot modem firmware · qualcomm/9205 lte modem firmware · qualcomm/9206 lte modem firmware · qualcomm/9207 lte modem firmware · qualcomm/apq8017 firmware · qualcomm/apq8037 firmware · qualcomm/aqt1000 firmware · qualcomm/ar6003 firmware · qualcomm/ar8035 firmware · qualcomm/c-v2x 9150 firmware · qualcomm/csra6620 firmware · qualcomm/csra6640 firmware · qualcomm/csrb31024 firmware · qualcomm/fastconnect 6200 firmware · qualcomm/fastconnect 6700 firmware · qualcomm/fastconnect 6800 firmware · qualcomm/fastconnect 6900 firmware · qualcomm/fastconnect 7800 firmware · qualcomm/mdm8207 firmware · qualcomm/mdm9205s firmware · +40 more
Source
product-security@qualcomm.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.