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CVE-2023-43551

Qualcomm 205 Mobile Firmware authentication bypass

9.1 CRITICALEPSS 0.26%
  1. Published3 Jun 2024

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Qualcomm 205 Mobile Firmwareall versions
Qualcomm 215 Mobile Firmwareall versions
Qualcomm 315 5g IoT Modem Firmwareall versions
Qualcomm 9205 Lte Modem Firmwareall versions
Qualcomm 9206 Lte Modem Firmwareall versions
Qualcomm 9207 Lte Modem Firmwareall versions
Qualcomm Apq8017 Firmwareall versions
Qualcomm Apq8037 Firmwareall versions
Qualcomm Aqt1000 Firmwareall versions
Qualcomm Ar6003 Firmwareall versions
Qualcomm Ar8035 Firmwareall versions
Qualcomm Csra6620 Firmwareall versions
Qualcomm Csra6640 Firmwareall versions
Qualcomm Csrb31024 Firmwareall versions
Qualcomm C-v2x 9150 Firmwareall versions
Qualcomm Fastconnect 6200 Firmwareall versions
Qualcomm Fastconnect 6700 Firmwareall versions
Qualcomm Fastconnect 6800 Firmwareall versions
Qualcomm Fastconnect 6900 Firmwareall versions
Qualcomm Fastconnect 7800 Firmwareall versions
Qualcomm Mdm8207 Firmwareall versions
Qualcomm Mdm9205s Firmwareall versions
Qualcomm Mdm9230 Firmwareall versions
Qualcomm Mdm9250 Firmwareall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2023-43551 being actively exploited?

CVE-2023-43551 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.26%.

How severe is CVE-2023-43551?

CVE-2023-43551 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.26% probability of exploitation.

Which products are affected by CVE-2023-43551?

Affected products include Qualcomm 205 Mobile Firmware, Qualcomm 215 Mobile Firmware, Qualcomm 315 5g IoT Modem Firmware, Qualcomm 9205 Lte Modem Firmware, Qualcomm 9206 Lte Modem Firmware, and 19 more.

How do I fix CVE-2023-43551?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-43551 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.