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CVE-2023-21631

Improper Input Validation in Modem

Published: Jul 4, 2023Updated: Aug 11, 2025 Sources: CVE List NVDCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 78.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Weak Configuration due to improper input validation in Modem while processing LTE security mode command message received from network.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

SnapdragonQualcomm, Inc.Hardware Firmware
315 5g firmwarequalcommHardware Firmware
9205 firmwarequalcommHardware Firmware
apq8017 firmwarequalcommHardware Firmware
apq8037 firmwarequalcommHardware Firmware
qualcomm, inc.commercialUSOperating Systemsaka qualcomm
qualcommcommercialUSHardware Firmwareaka qualcomm, inc., qualcomm inc, qualcomm incorporated
and 156 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin
qualcomm.com

Timeline

Published
Jul 4, 2023
Last Updated
Aug 11, 2025

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