Cyber Resilience

CVE-2023-33042

High

Published: 05 December 2023

Published
05 December 2023
Modified
11 August 2025
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0024 48.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-33042 is a high-severity Improper Input Validation (CWE-20) vulnerability in Qualcomm 315 5G Iot Modem Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 48.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Transient DOS in Modem after RRC Setup message is received.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qualcomm
315 5g iot modem firmware
all versions
qualcomm
ar8035 firmware
all versions
qualcomm
wcn3991 firmware
all versions
qualcomm
wcn3998 firmware
all versions
qualcomm
wcn6750 firmware
all versions
qualcomm
qca6390 firmware
all versions
qualcomm
wcn685x-5 firmware
all versions
qualcomm
wcn685x-1 firmware
all versions
qualcomm
wcn785x-1 firmware
all versions
qualcomm
wcn785x-5 firmware
all versions
+64 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

References