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Csra6620 Firmware CVE-2023-21657

HIGH
Improper Input Validation (CWE-20)
2023-06-06 product-security@qualcomm.com
Information Disclosure Qualcomm Csra6620 Firmware Csra6640 Firmware Flight Rb5 5g Platform Firmware Qam8255p Firmware Qam8295p Firmware Qam8650p Firmware Qam8775p Firmware Qca6174a Firmware Qca6310 Firmware Qca6320 Firmware Qca6391 Firmware Qca6426 Firmware Qca6436 Firmware Qca6574 Firmware Qca6574a Firmware Qca6574au Firmware Qca6595 Firmware Qca6595au Firmware Qca6696 Firmware Qca6698aq Firmware Qca6797aq Firmware Qca9377 Firmware Qcm2290 Firmware Qcm4290 Firmware Qcm4325 Firmware Qcm6490 Firmware Qcn9011 Firmware Qcn9012 Firmware Qcs2290 Firmware Qcs410 Firmware Qcs4290 Firmware Qcs610 Firmware Qcs6490 Firmware Qcs8250 Firmware Qcs8550 Firmware Qrb5165m Firmware Qrb5165n Firmware Sa4150p Firmware Sa4155p Firmware Sa6145p Firmware Sa6150p Firmware Sa6155p Firmware Sa8145p Firmware Sa8150p Firmware Sa8155p Firmware Sa8195p Firmware Sa8255p Firmware Sa8295p Firmware Sd660 Firmware Sd835 Firmware Sd865 5g Firmware Sd888 Firmware Sdm429w Firmware Sg4150p Firmware Sm4125 Firmware Sm7250p Firmware Sm7315 Firmware Sm7325p Firmware Smart Audio 400 Platform Firmware Snapdragon 662 Mobile Platform Firmware Snapdragon 820 Automotive Platform Firmware Snapdragon 835 Mobile Pc Platform Firmware Snapdragon Auto 5g Modem Rf Firmware Snapdragon X12 Lte Modem Firmware Snapdragon X55 5g Modem Rf System Firmware Snapdragon Xr2 5g Platform Firmware Sxr2130 Firmware Wcd9326 Firmware Wcd9335 Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcn3615 Firmware Wcn3620 Firmware Wcn3660b Firmware Wcn3680b Firmware Wcn3910 Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3988 Firmware Wcn3990 Firmware Wcn6740 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8835 Firmware Snapdragon 7C Gen 3 Compute Firmware Snapdragon Xr2 Gen 1 Platform Firmware Mdm9650 Firmware Wcn6750 Firmware Sdm660 Firmware Sdm429 Firmware Sdm439 Firmware Qm215 Firmware Sm8250 Firmware Qca6390 Firmware Qrb5165 Firmware Sm6350 Firmware Sm7225 Firmware Sm8350 Firmware Wcn3991 Firmware Wcn3998 Firmware Sm4350 Firmware Sm7325 Firmware Sm6225 Firmware Sm6375 Firmware Sm4375 Firmware Wcn685X 1 Firmware Wcn785X 1 Firmware Wcn685X 5 Firmware Wcn785X 5 Firmware Sm4250 Aa Firmware Sm4350 Ac Firmware Sm6225 Ad Firmware Sm7250 Aa Firmware Sm7250 Ab Firmware Sm7250 Ac Firmware Sm7325 Ae Firmware Sm7325 Af Firmware Sm8250 Ab Firmware Sm8250 Ac Firmware Sm8350 Ac Firmware Sm7350 Ab Firmware
7.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAI

Memoru corruption in Audio when ADSP sends input during record use case. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-20. Memoru corruption in Audio when ADSP sends input during record use case. Affected products include: Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware, Qualcomm Wcn3991 Firmware, Qualcomm Wcn3998 Firmware, Qualcomm Wcn6750 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Memoru corruption in Audio when ADSP sends input during record use case.

Threat Intelligence Overview

EPSS Score
0.1%
Top 98% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:o:qualcomm:csra6620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3991_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn6750_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn685x-5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn685x-1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn785x-1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn785x-5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
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