Memory Corruption in Qualcomm Chipset Firmware

Publication date: 2026-07-06

Last updated on: 2026-07-07

Assigner: Qualcomm, Inc.

Description

Memory Corruption when updating prepared commands with invalid port indices based on user space input exceeds supported read client limits.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-06

Last Modified

2026-07-07

Generated

2026-07-27

AI Q&A

2026-07-07

EPSS Evaluated

2026-07-25

NVD

CVE-2026-21384

Affected Vendors & Products

Vendor	Product	Version / Range
qualcomm	fastconnect_6700_firmware	*
qualcomm	fastconnect_6900_firmware	*
qualcomm	fastconnect_7800_firmware	*
qualcomm	lemans_au_lgit_firmware	*
qualcomm	lemansau_firmware	*
qualcomm	netrani_firmware	*
qualcomm	pandeiro_firmware	*
qualcomm	qam8255p_firmware	*
qualcomm	qamsrv1h_firmware	*
qualcomm	qamsrv1m_firmware	*
qualcomm	qca6595_firmware	*
qualcomm	qca6595au_firmware	*
qualcomm	qca6678aq_firmware	*
qualcomm	qca6698aq_firmware	*
qualcomm	qca6698au_firmware	*
qualcomm	qca6797aq_firmware	*
qualcomm	qcm4490_firmware	*
qualcomm	qcm5430_firmware	*
qualcomm	qcm6490_firmware	*
qualcomm	qcm8838_firmware	*
qualcomm	qcs4490_firmware	*
qualcomm	qcs8550_firmware	*
qualcomm	qln1083bd_firmware	*
qualcomm	qln1086bd_firmware	*
qualcomm	qpa1083bd_firmware	*
qualcomm	qpa1086bd_firmware	*
qualcomm	video_collaboration_vc3_platform_firmware	*
qualcomm	qxm1093_firmware	*
qualcomm	qxm1094_firmware	*
qualcomm	qxm1095_firmware	*
qualcomm	qxm1096_firmware	*
qualcomm	sa7255p_firmware	*
qualcomm	sa7775p_firmware	*
qualcomm	sa8255p_firmware	*
qualcomm	sa8620p_firmware	*
qualcomm	sa8770p_firmware	*
qualcomm	sa9000p_firmware	*
qualcomm	sar2130p_firmware	*
qualcomm	sc8380xp_firmware	*
qualcomm	sd_8_gen1_5g_firmware	*
qualcomm	sd865_5g_firmware	*
qualcomm	sdr753_firmware	*
qualcomm	sm7435_firmware	*
qualcomm	snapdragon_4_gen_2_mobile_platform_firmware	*
qualcomm	snapdragon_460_mobile_platform_firmware	*
qualcomm	snapdragon_6_gen_1_mobile_platform_firmware	*
qualcomm	snapdragon_6_gen_3_mobile_platform_firmware	*
qualcomm	snapdragon_662_mobile_platform_firmware	*
qualcomm	snapdragon_7_gen_1_mobile_platform_firmware	*
qualcomm	snapdragon_8_elite_firmware	*
qualcomm	snapdragon_8_gen_1_mobile_platform_firmware	*
qualcomm	snapdragon_ar1_gen_1_platform_firmware	*
qualcomm	snapdragon_xr2_5g_platform_firmware	*
qualcomm	snapdragon_xr2+_gen_1_platform_firmware	*
qualcomm	srv1h_firmware	*
qualcomm	srv1m_firmware	*
qualcomm	sxr2230p_firmware	*
qualcomm	sxr2330p_firmware	*
qualcomm	sxr2350p_firmware	*
qualcomm	wcd9370_firmware	*
qualcomm	wcd9375_firmware	*
qualcomm	wcd9380_firmware	*
qualcomm	wcd9385_firmware	*
qualcomm	wcn3950_firmware	*
qualcomm	wcn3988_firmware	*
qualcomm	wcn6755_firmware	*
qualcomm	wcn7860_firmware	*
qualcomm	wcn7861_firmware	*
qualcomm	wcn7881_firmware	*
qualcomm	wsa8810_firmware	*
qualcomm	wsa8815_firmware	*
qualcomm	wsa8830_firmware	*
qualcomm	wsa8832_firmware	*
qualcomm	wsa8835_firmware	*
qualcomm	wsa8840_firmware	*
qualcomm	wsa8845_firmware	*
qualcomm	wsa8845h_firmware	*
qualcomm	xrv7209_firmware	*
qualcomm	xrv9209_firmware	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability involves memory corruption that occurs when prepared commands are updated with invalid port indices. These invalid indices come from user space input that exceeds the supported read client limits.

Impact Analysis

The memory corruption caused by this vulnerability can lead to a partial compromise of confidentiality, integrity, and availability. Specifically, it may allow an attacker with limited privileges and local access to cause data corruption or leakage, potentially impacting system stability and security.

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