CVE-2025-47391 [High] | Memory Corruption in Wcn3988 Firmware

CVE-2025-47391 is rated Low Risk (31.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-07	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-07

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

5.9

[email protected]

Affected software / configurations for CVE-2025-47391

Vendor	Product	Version	Raw CPE
qualcomm	wcn3988_firmware	—	cpe:2.3:o:qualcomm:wcn3988_firmware:-:::::::*
qualcomm	wcn6450_firmware	—	cpe:2.3:o:qualcomm:wcn6450_firmware:-:::::::*
qualcomm	wcn6650_firmware	—	cpe:2.3:o:qualcomm:wcn6650_firmware:-:::::::*
qualcomm	wcn6755_firmware	—	cpe:2.3:o:qualcomm:wcn6755_firmware:-:::::::*
qualcomm	wcn7860_firmware	—	cpe:2.3:o:qualcomm:wcn7860_firmware:-:::::::*
qualcomm	wcn7861_firmware	—	cpe:2.3:o:qualcomm:wcn7861_firmware:-:::::::*
qualcomm	wcn7880_firmware	—	cpe:2.3:o:qualcomm:wcn7880_firmware:-:::::::*
qualcomm	wcn7881_firmware	—	cpe:2.3:o:qualcomm:wcn7881_firmware:-:::::::*
qualcomm	wsa8810_firmware	—	cpe:2.3:o:qualcomm:wsa8810_firmware:-:::::::*
qualcomm	wsa8815_firmware	—	cpe:2.3:o:qualcomm:wsa8815_firmware:-:::::::*
qualcomm	wsa8830_firmware	—	cpe:2.3:o:qualcomm:wsa8830_firmware:-:::::::*
qualcomm	wsa8832_firmware	—	cpe:2.3:o:qualcomm:wsa8832_firmware:-:::::::*
qualcomm	wsa8835_firmware	—	cpe:2.3:o:qualcomm:wsa8835_firmware:-:::::::*
qualcomm	wsa8840_firmware	—	cpe:2.3:o:qualcomm:wsa8840_firmware:-:::::::*
qualcomm	wsa8845_firmware	—	cpe:2.3:o:qualcomm:wsa8845_firmware:-:::::::*
qualcomm	wsa8845h_firmware	—	cpe:2.3:o:qualcomm:wsa8845h_firmware:-:::::::*
qualcomm	fastconnect_6200_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:::::::*
qualcomm	fastconnect_6700_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:::::::*
qualcomm	fastconnect_6900_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:::::::*
qualcomm	fastconnect_7800_firmware	—	cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:::::::*
qualcomm	g2_gen_1_firmware	—	cpe:2.3:o:qualcomm:g2_gen_1_firmware:-:::::::*
qualcomm	iq-615_firmware	—	cpe:2.3:o:qualcomm:iq-615_firmware:-:::::::*
qualcomm	iq-8275_firmware	—	cpe:2.3:o:qualcomm:iq-8275_firmware:-:::::::*
qualcomm	iq-8300_firmware	—	cpe:2.3:o:qualcomm:iq-8300_firmware:-:::::::*
qualcomm	iq-9100_firmware	—	cpe:2.3:o:qualcomm:iq-9100_firmware:-:::::::*
qualcomm	iq-9075_firmware	—	cpe:2.3:o:qualcomm:iq-9075_firmware:-:::::::*
qualcomm	lemans_au_lgit_firmware	—	cpe:2.3:o:qualcomm:lemans_au_lgit_firmware:-:::::::*
qualcomm	lemansau_firmware	—	cpe:2.3:o:qualcomm:lemansau_firmware:-:::::::*
qualcomm	milos_firmware	—	cpe:2.3:o:qualcomm:milos_firmware:-:::::::*
qualcomm	monaco_iot_firmware	—	cpe:2.3:o:qualcomm:monaco_iot_firmware:-:::::::*
qualcomm	netrani_firmware	—	cpe:2.3:o:qualcomm:netrani_firmware:-:::::::*
qualcomm	orne_firmware	—	cpe:2.3:o:qualcomm:orne_firmware:-:::::::*
qualcomm	palawan25_firmware	—	cpe:2.3:o:qualcomm:palawan25_firmware:-:::::::*
qualcomm	pandeiro_firmware	—	cpe:2.3:o:qualcomm:pandeiro_firmware:-:::::::*
qualcomm	qam8255p_firmware	—	cpe:2.3:o:qualcomm:qam8255p_firmware:-:::::::*
qualcomm	qam8397p_firmware	—	cpe:2.3:o:qualcomm:qam8397p_firmware:-:::::::*
qualcomm	qamsrv1h_firmware	—	cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:::::::*
qualcomm	qamsrv1m_firmware	—	cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:::::::*
qualcomm	qca6391_firmware	—	cpe:2.3:o:qualcomm:qca6391_firmware:-:::::::*
qualcomm	qca6595_firmware	—	cpe:2.3:o:qualcomm:qca6595_firmware:-:::::::*
qualcomm	qca6595au_firmware	—	cpe:2.3:o:qualcomm:qca6595au_firmware:-:::::::*
qualcomm	qca6678aq_firmware	—	cpe:2.3:o:qualcomm:qca6678aq_firmware:-:::::::*
qualcomm	qca6698aq_firmware	—	cpe:2.3:o:qualcomm:qca6698aq_firmware:-:::::::*
qualcomm	qca6698au_firmware	—	cpe:2.3:o:qualcomm:qca6698au_firmware:-:::::::*
qualcomm	qca6797aq_firmware	—	cpe:2.3:o:qualcomm:qca6797aq_firmware:-:::::::*
qualcomm	qca8695au_firmware	—	cpe:2.3:o:qualcomm:qca8695au_firmware:-:::::::*
qualcomm	qcm4490_firmware	—	cpe:2.3:o:qualcomm:qcm4490_firmware:-:::::::*
qualcomm	qcm5430_firmware	—	cpe:2.3:o:qualcomm:qcm5430_firmware:-:::::::*
qualcomm	qcm6490_firmware	—	cpe:2.3:o:qualcomm:qcm6490_firmware:-:::::::*
qualcomm	qcn9011_firmware	—	cpe:2.3:o:qualcomm:qcn9011_firmware:-:::::::*
qualcomm	qcn9012_firmware	—	cpe:2.3:o:qualcomm:qcn9012_firmware:-:::::::*
qualcomm	qcs4490_firmware	—	cpe:2.3:o:qualcomm:qcs4490_firmware:-:::::::*
qualcomm	qcs8550_firmware	—	cpe:2.3:o:qualcomm:qcs8550_firmware:-:::::::*
qualcomm	qmp1000_firmware	—	cpe:2.3:o:qualcomm:qmp1000_firmware:-:::::::*
qualcomm	video_collaboration_vc3_platform_firmware	—	cpe:2.3:o:qualcomm:video_collaboration_vc3_platform_firmware:-:::::::*
qualcomm	sa7255p_firmware	—	cpe:2.3:o:qualcomm:sa7255p_firmware:-:::::::*
qualcomm	sa7775p_firmware	—	cpe:2.3:o:qualcomm:sa7775p_firmware:-:::::::*
qualcomm	sa8255p_firmware	—	cpe:2.3:o:qualcomm:sa8255p_firmware:-:::::::*
qualcomm	sa8620p_firmware	—	cpe:2.3:o:qualcomm:sa8620p_firmware:-:::::::*
qualcomm	sa8770p_firmware	—	cpe:2.3:o:qualcomm:sa8770p_firmware:-:::::::*
qualcomm	sa9000p_firmware	—	cpe:2.3:o:qualcomm:sa9000p_firmware:-:::::::*
qualcomm	sd_8_gen1_5g_firmware	—	cpe:2.3:o:qualcomm:sd_8_gen1_5g_firmware:-:::::::*
qualcomm	sm6650p_firmware	—	cpe:2.3:o:qualcomm:sm6650p_firmware:-:::::::*
qualcomm	sm7435_firmware	—	cpe:2.3:o:qualcomm:sm7435_firmware:-:::::::*
qualcomm	sm7550_firmware	—	cpe:2.3:o:qualcomm:sm7550_firmware:-:::::::*
qualcomm	sm7550p_firmware	—	cpe:2.3:o:qualcomm:sm7550p_firmware:-:::::::*
qualcomm	sm7635p_firmware	—	cpe:2.3:o:qualcomm:sm7635p_firmware:-:::::::*
qualcomm	sm7675_firmware	—	cpe:2.3:o:qualcomm:sm7675_firmware:-:::::::*
qualcomm	sm7675p_firmware	—	cpe:2.3:o:qualcomm:sm7675p_firmware:-:::::::*
qualcomm	sm8475p_firmware	—	cpe:2.3:o:qualcomm:sm8475p_firmware:-:::::::*
qualcomm	sm8550p_firmware	—	cpe:2.3:o:qualcomm:sm8550p_firmware:-:::::::*
qualcomm	sm8635_firmware	—	cpe:2.3:o:qualcomm:sm8635_firmware:-:::::::*
qualcomm	sm8635p_firmware	—	cpe:2.3:o:qualcomm:sm8635p_firmware:-:::::::*
qualcomm	sm8650q_firmware	—	cpe:2.3:o:qualcomm:sm8650q_firmware:-:::::::*
qualcomm	sm8750p_firmware	—	cpe:2.3:o:qualcomm:sm8750p_firmware:-:::::::*
qualcomm	snapdragon_4_gen_2_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_4_gen_2_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_6_gen_1_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_6_gen_1_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_6_gen_3_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_6_gen_3_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_6_gen_4_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_6_gen_4_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_7_gen_1_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_7_gen_1_mobile_platform_firmware:-:::::::*

References for CVE-2025-47391

URL	Tags
https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html	Patch Vendor Advisory

URL

CVE-2025-47391 | Stack-based Buffer Overflow in Camera Driver

Exploit prediction scoring system (EPSS) score for CVE-2025-47391

Common vulnerability scoring system (CVSS) metrics for CVE-2025-47391

Weakness enumeration for CVE-2025-47391

Affected software / configurations for CVE-2025-47391

References for CVE-2025-47391