What is the CVSS score of CVE-2024-49843?

CVE-2024-49843 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2024-49843?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Fastconnect 6200 Firmware CVE-2024-49843

HIGH

Improper Validation of Array Index (CWE-129)

2025-02-03 product-security@qualcomm.com

Buffer Overflow Qualcomm Fastconnect 6200 Firmware Fastconnect 7800 Firmware Qca6391 Firmware Qcm6125 Firmware Qcs6125 Firmware Qcs7230 Firmware Qcs8250 Firmware Sm4635 Firmware Sm6650 Firmware Sm7635 Firmware Sm7675 Firmware Sm7675p Firmware Sm8635 Firmware Sm8635p Firmware Sm8750 Firmware Sm8750p Firmware Snapdragon 4 Gen 1 Mobile Firmware Snapdragon 480 5g Mobile Firmware Snapdragon 695 5g Mobile Firmware Snapdragon 8 Gen 3 Mobile Firmware Sw5100 Firmware Sw5100p Firmware Sxr2330p Firmware Video Collaboration Vc1 Platform Firmware Video Collaboration Vc5 Platform Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9378 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcd9390 Firmware Wcd9395 Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3988 Firmware Wcn6450 Firmware Wcn6650 Firmware Wcn6755 Firmware Wcn7860 Firmware Wcn7861 Firmware Wcn7880 Firmware Wcn7881 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8832 Firmware Wsa8835 Firmware Wsa8840 Firmware Wsa8845 Firmware Wsa8845h Firmware Snapdragon W5 Gen 1 Wearable Firmware

7.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-129 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Array index validation
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: 0.15%.
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).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Memory corruption while processing IOCTL from user space to handle GPU AHB bus error. 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-129. Memory corruption while processing IOCTL from user space to handle GPU AHB bus error. Affected products include: Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qca6391 Firmware, Qualcomm Qcm6125 Firmware, Qualcomm Qcs6125 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

Lifecycle Timeline

Patch released

Mar 28, 2026 - 18:07 nvd

Patch available

CVE Published

Feb 03, 2025 - 17:15 nvd

HIGH 7.8

DescriptionCVE.org

Memory corruption while processing IOCTL from user space to handle GPU AHB bus error.

Executive ViewAI

Why It Matters

CVE-2024-49843 presents notable security risk rated CVSS 7.8. Exploitation could compromise the security of affected deployments. A patch is available and should be applied as part of regular vulnerability management.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score

0.1%

Top 65% 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 0.1%

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

Scheduled

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +39

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)CVE.org

cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*

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

cpe:2.3:o:qualcomm:qcs6125_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:qcs7230_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:qcs8250_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:video_collaboration_vc1_platform_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:video_collaboration_vc5_platform_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm4635_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm6650_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm7635_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm7675_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm7675p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8635_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8635p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8750_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:sm8750p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:snapdragon_4_gen_1_mobile_firmware:-:*:*:*:*:*:*:*

cpe:2.3:o:qualcomm:snapdragon_480_5g_mobile_firmware:-:*:*:*:*:*:*:*

+ 32 more

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References

Advisories & patches

PATCH https://docs.qualcomm.com/product/publicresources/securitybulletin/february-2025-bulletin.html

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GitHub PoC

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