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315 5g Iot Modem Firmware CVE-2025-27062

HIGH
Improper Access Control (CWE-284)
2025-08-06 product-security@qualcomm.com
Authentication Bypass Buffer Overflow Qualcomm 315 5g Iot Modem Firmware Apq8064au Firmware Ar8035 Firmware C V2x 9150 Firmware Csra6620 Firmware Csra6640 Firmware Fastconnect 6200 Firmware Fastconnect 6700 Firmware Fastconnect 6900 Firmware Fastconnect 7800 Firmware Msm8996au Firmware Qam8255p Firmware Qam8295p Firmware Qam8620p Firmware Qam8650p Firmware Qam8775p Firmware Qamsrv1h Firmware Qamsrv1m Firmware Qca6174a Firmware Qca6391 Firmware Qca6564 Firmware Qca6564a Firmware Qca6564au Firmware Qca6574 Firmware Qca6574a Firmware Qca6574au Firmware Qca6584au Firmware Qca6595 Firmware Qca6595au Firmware Qca6678aq Firmware Qca6688aq Firmware Qca6696 Firmware Qca6698aq Firmware Qca6797aq Firmware Qca8081 Firmware Qca8337 Firmware Qca9377 Firmware Qcm4325 Firmware Qcm6125 Firmware Qcm6490 Firmware Qcn6024 Firmware Qcn9024 Firmware Qcs410 Firmware Qcs610 Firmware Qcs6490 Firmware Qcs7230 Firmware Qcs8155 Firmware Qcs8250 Firmware Qcs8550 Firmware Qsm8350 Firmware Sa2150p Firmware Sa4150p Firmware Sa4155p Firmware Sa6145p Firmware Sa6150p Firmware Sa6155 Firmware Sa6155p Firmware Sa7255p Firmware Sa7775p Firmware Sa8145p Firmware Sa8150p Firmware Sa8155 Firmware Sa8155p Firmware Sa8195p Firmware Sa8255p Firmware Sa8295p Firmware Sa8620p Firmware Sa8650p Firmware Sa8770p Firmware Sa8775p Firmware Sa9000p Firmware Sd660 Firmware Sd888 Firmware Sdx55 Firmware Sdx61 Firmware Sg4150p Firmware Sm6370 Firmware Sm6650 Firmware Sm6650p Firmware Sm7315 Firmware Sm7325p Firmware Sm7635 Firmware Sm7635p Firmware Sm7675 Firmware Sm7675p Firmware Sm8550p Firmware Sm8635 Firmware Sm8635p Firmware Sm8650q Firmware Smart Audio 400 Platform Firmware Snapdragon 4 Gen 1 Mobile Platform Firmware Snapdragon 460 Mobile Platform Firmware Snapdragon 480 5g Mobile Platform Firmware Snapdragon 660 Mobile Platform Firmware Snapdragon 662 Mobile Platform Firmware Snapdragon 680 4g Mobile Platform Firmware Snapdragon 695 5g Mobile Platform Firmware Snapdragon 720g Mobile Platform Firmware Snapdragon 778g 5g Mobile Platform Firmware Snapdragon 780g 5g Mobile Platform Firmware Snapdragon 8 Gen 2 Mobile Platform Firmware Snapdragon 8 Gen 3 Mobile Platform Firmware Snapdragon 820 Automotive Platform Firmware Snapdragon 888 5g Mobile Platform Firmware Snapdragon Auto 5g Modem Rf Firmware Snapdragon Auto 5g Modem Rf Gen 2 Firmware Snapdragon X12 Lte Modem Firmware Snapdragon X62 5g Modem Rf System Firmware Snapdragon X65 5g Modem Rf System Firmware Srv1h Firmware Srv1l Firmware Srv1m Firmware Sw5100 Firmware Sw5100p Firmware Video Collaboration Vc1 Platform Firmware Video Collaboration Vc3 Platform Firmware Video Collaboration Vc5 Platform Firmware Wcd9335 Firmware Wcd9341 Firmware Wcd9360 Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9378 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcd9390 Firmware Wcd9395 Firmware Wcn3660b Firmware Wcn3680b Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3988 Firmware Wcn3990 Firmware Wcn6650 Firmware Wcn6740 Firmware Wcn6755 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8832 Firmware Wsa8835 Firmware Wsa8840 Firmware Wsa8845 Firmware Wsa8845h Firmware Snapdragon 7C Gen 3 Compute Firmware Snapdragon 888 5G Mobile Platform Sm8350 Ac Firmware Snapdragon 480 5G Mobile Platform Sm4350 Ac Firmware Snapdragon 685 4G Mobile Platform Sm6225 Ad Firmware Snapdragon 778G 5G Mobile Platform Sm7325 Ae Firmware Snapdragon 782G Mobile Platform Sm7325 Af Firmware Snapdragon W5 Gen 1 Wearable Platform Firmware Mdm9650 Firmware
7.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.02%.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Month Plan within 30 days. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Memory corruption while handling client exceptions, allowing unauthorized channel access. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

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.

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-284. Memory corruption while handling client exceptions, allowing unauthorized channel access. Affected products include: Qualcomm 315 5G Iot Modem Firmware, Qualcomm Apq8064Au Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2X 9150 Firmware, Qualcomm Csra6620 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

DescriptionCVE.org

Memory corruption while handling client exceptions, allowing unauthorized channel access.

Executive ViewAI

Why It Matters

CVE-2025-27062 presents notable security risk, a improper access control vulnerability rated CVSS 7.8. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Restrict access to affected endpoints; (2) Implement additional authorization checks; (3) Enable audit logging.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable

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 0.0%
Patch available No
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

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

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)CVE.org

cpe:2.3:o:qualcomm:315_5g_iot_modem_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8064au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:c-v2x_9150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm7635_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm7635p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm7675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm7675p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8550p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8635_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8635p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm8650q_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:smart_audio_400_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_4_gen_1_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_460_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_480_5g_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_480\+_5g_mobile_platform_\(sm4350-ac\)_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_660_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_662_mobile_platform_firmware:-:*:*:*:*:*:*:*
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