What is the CVSS score of CVE-2020-3692?

CVE-2020-3692 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Qcm6125 Firmware CVE-2020-3692

CRITICAL

Classic Buffer Overflow (CWE-120)

2020-11-02 product-security@qualcomm.com

Buffer Overflow Qualcomm Qcm6125 Firmware Qcs610 Firmware Sdx55 Firmware Sxr2130 Firmware Sdx24 Firmware Sm7150 Firmware Sm6150 Firmware Sm8150 Firmware Nicobar Firmware Sc8180X Firmware Sm8250 Firmware Rennell Firmware Saipan Firmware Sc7180 Firmware Kamorta Firmware Sa415M Firmware Agatti Firmware

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-120 ASVS 5.0 V15 - Secure Coding and Architecture Buffer copy size validation MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could overflow a buffer to corrupt adjacent memory by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAI

u'Possible buffer overflow while updating output buffer for IMEI and Gateway Address due to lack of check of input validation for parameters received from server' in Snapdragon Auto, Snapdragon. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

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 as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. u'Possible buffer overflow while updating output buffer for IMEI and Gateway Address due to lack of check of input validation for parameters received from server' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in Agatti, Kamorta, Nicobar, QCM6125, QCS610, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130 Affected products include: Qualcomm Agatti Firmware, Qualcomm Kamorta Firmware, Qualcomm Nicobar Firmware, Qualcomm Qcm6125 Firmware, Qualcomm Qcs610 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

u'Possible buffer overflow while updating output buffer for IMEI and Gateway Address due to lack of check of input validation for parameters received from server' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in Agatti, Kamorta, Nicobar, QCM6125, QCS610, Rennell, SA415M, Saipan, SC7180, SC8180X, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Threat Intelligence Overview

EPSS Score

0.9%

Top 45% exploitable

Data Quality

2 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.9%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +49

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.

Affected Products (CPE)NVD

cpe:2.3:o:qualcomm:agatti_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:kamorta_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:nicobar_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:rennell_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:saipan_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sc7180_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sc8180x_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm6150_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm7150_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8150_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8250_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sxr2130_firmware:-:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.qualcomm.com/company/product-security/bulletins/october-2020-security-bulletin REF https://www.qualcomm.com/company/product-security/bulletins/october-2020-bulletin

Search Externally

GitHub PoC

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