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Fastconnect 6900 Firmware CVE-2025-27064

MEDIUM
Buffer Over-read (CWE-126)
2025-11-04 product-security@qualcomm.com
Buffer Overflow Information Disclosure Qualcomm Fastconnect 6900 Firmware Fastconnect 7800 Firmware Immersive Home 3210 Platform Firmware Immersive Home 326 Platform Firmware Ipq5300 Firmware Ipq5302 Firmware Ipq5312 Firmware Ipq5332 Firmware Ipq5424 Firmware Ipq9008 Firmware Ipq9048 Firmware Ipq9554 Firmware Ipq9570 Firmware Ipq9574 Firmware Mdm9628 Firmware Qam8255p Firmware Qam8650p Firmware Qca0000 Firmware Qca6564a Firmware Qca6564au Firmware Qca6574a Firmware Qca6574au Firmware Qca6584au Firmware Qca6595au Firmware Qca6678aq Firmware Qca6688aq Firmware Qca6698aq Firmware Qca8075 Firmware Qca8080 Firmware Qca8081 Firmware Qca8082 Firmware Qca8084 Firmware Qca8085 Firmware Qca8101 Firmware Qca8102 Firmware Qca8111 Firmware Qca8112 Firmware Qca8384 Firmware Qca8385 Firmware Qca8386 Firmware Qca9367 Firmware Qca9377 Firmware Qcf8000 Firmware Qcf8001 Firmware Qcn5124 Firmware Qcn5224 Firmware Qcn6402 Firmware Qcn6412 Firmware Qcn6422 Firmware Qcn6432 Firmware Qcn9000 Firmware Qcn9012 Firmware Qcn9024 Firmware Qcn9074 Firmware Qcn9160 Firmware Qcn9274 Firmware Qxm8083 Firmware Sa4150p Firmware Sa4155p Firmware Sa6155p Firmware Sa7255p Firmware Sa8155p Firmware Sa8195p Firmware Sa8255p Firmware Sa8530p Firmware Sa8540p Firmware Sa8650p Firmware Sa9000p Firmware Snapdragon 8 Gen 1 Mobile Platform Firmware Snapdragon Auto 5g Modem Rf Gen 2 Firmware Sxr2250p Firmware Wcd9380 Firmware Wcn3660b Firmware Wcn3680b Firmware Wcn3980 Firmware Wsa8830 Firmware Wsa8835 Firmware
6.1
CVSS 3.1 · Vendor: qualcomm
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Vulnerability Assessment

Weakness
CWE
CWE-126
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Buffer over-read prevention
Impact

CVSS score of 6.1 (MEDIUM). 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 medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Information disclosure while registering commands from clients with diag through diagHal. Rated medium severity (CVSS 6.1), 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.

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Technical ContextAI · show details

This vulnerability is classified under CWE-126. Information disclosure while registering commands from clients with diag through diagHal. Affected products include: Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Immersive Home 3210 Platform Firmware, Qualcomm Immersive Home 326 Platform Firmware, Qualcomm Ipq5300 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (qualcomm) PRIMARY 6.1 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

Primary rating from Vendor (qualcomm) · only source for this CVE.

CVSS VectorVendor: qualcomm

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

DescriptionCVE.org

Information disclosure while registering commands from clients with diag through diagHal.

Executive ViewAI

Why It Matters

CVE-2025-27064 presents moderate security risk rated CVSS 6.1. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 95% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Low

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

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.

Information Disclosure MEDIUM

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

Affected Products (CPE)CVE.org

cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_3210_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:immersive_home_326_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5302_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5312_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5332_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq5424_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq9008_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq9048_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq9554_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq9570_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq9574_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9628_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca0000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*
+ 57 more

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References

Advisories & patches
ADVISORY https://docs.qualcomm.com/product/publicresources/securitybulletin/november-2025-bulletin.html

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