CVE-2025-21452

HIGH
2025-08-06 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:05 vuln.today
CVE Published
Aug 06, 2025 - 08:15 nvd
HIGH 7.5

Tags

Information Disclosure 315 5g Iot Modem Firmware Ar8035 Firmware Fastconnect 6200 Firmware Fastconnect 6700 Firmware Fastconnect 6800 Firmware Fastconnect 6900 Firmware Fsm10055 Firmware Qca6174a Firmware Qca6391 Firmware Qca6421 Firmware Qca6426 Firmware Qca6431 Firmware Qca6436 Firmware Qca6574a Firmware Qca6574au Firmware Qca6595au Firmware Qca6696 Firmware Qca6698aq Firmware Qca8337 Firmware Qcm5430 Firmware Qcm6490 Firmware Qcs5430 Firmware Qcs6490 Firmware Qep8111 Firmware Video Collaboration Vc3 Platform Firmware Sd855 Firmware Sd865 5g Firmware Sdx55 Firmware Sdx57m Firmware Sm6370 Firmware Sm6650 Firmware Sm7250p Firmware Sm7325p Firmware Sm7635 Firmware Snapdragon 4 Gen 1 Mobile Platform Firmware Snapdragon 480 5g Mobile Platform Firmware Snapdragon 480 5G Mobile Platform Sm4350 Ac Firmware Snapdragon 690 5g Mobile Platform Firmware Snapdragon 695 5g Mobile Platform Firmware Snapdragon 765 5G Mobile Platform Sm7250 Aa Firmware Snapdragon 765G 5G Mobile Platform Sm7250 Ab Firmware Snapdragon 768G 5G Mobile Platform Sm7250 Ac Firmware Snapdragon 778g 5g Mobile Platform Firmware Snapdragon 778G 5G Mobile Platform Sm7325 Ae Firmware Snapdragon 780g 5g Mobile Platform Firmware Snapdragon 782G Mobile Platform Sm7325 Af Firmware Snapdragon 7C Gen 3 Compute Firmware Snapdragon 855 Mobile Platform Firmware Snapdragon 855 860 Mobile Platform Sm8150 Ac Firmware Snapdragon 865 5g Mobile Platform Firmware Snapdragon 865 5G Mobile Platform Sm8250 Ab Firmware Snapdragon 870 5G Mobile Platform Sm8250 Ac Firmware Snapdragon 888 5g Mobile Platform Firmware Snapdragon 888 5G Mobile Platform Sm8350 Ac Firmware Snapdragon Auto 5g Modem Rf Firmware Snapdragon X35 5g Modem Rf System Firmware Snapdragon X55 5g Modem Rf System Firmware Snapdragon Xr2 5g Platform Firmware Sxr2130 Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9360 Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9378 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcd9395 Firmware Wcn3988 Firmware Wcn6450 Firmware Wcn6650 Firmware Wcn6740 Firmware Wcn6755 Firmware Wcn7861 Firmware Wcn7881 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8832 Firmware Wsa8835 Firmware

Description

Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network.

Analysis

Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-617. Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network. Affected products include: Qualcomm 315 5G Iot Modem Firmware, Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware.

Affected Products

Qualcomm 315 5G Iot Modem Firmware, Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +38
POC: 0

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CVE-2025-21452 vulnerability details – vuln.today
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