CVE-2025-21433 [Medium] | Denial of Service in Apq8017 Firmware

CVE-2025-21433 is rated Low Risk (31.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-04	0.01%	0.06%	+0.05%
2	2025-07-09	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-04

0.01%

0.06%

+0.05%

2025-07-09

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.2	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N) No account or special rights needed—anonymous or random user is enough. 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:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.5	3.6	[email protected]
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.2

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N): No account or special rights needed—anonymous or random user is enough.
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:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.5

3.6

[email protected]

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

3.6

[email protected]

Affected software / configurations for CVE-2025-21433

Vendor	Product	Version	Raw CPE
qualcomm	apq8017_firmware	—	cpe:2.3:o:qualcomm:apq8017_firmware:-:::::::*
qualcomm	apq8037_firmware	—	cpe:2.3:o:qualcomm:apq8037_firmware:-:::::::*
qualcomm	aqt1000_firmware	—	cpe:2.3:o:qualcomm:aqt1000_firmware:-:::::::*
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	csra6620_firmware	—	cpe:2.3:o:qualcomm:csra6620_firmware:-:::::::*
qualcomm	sd888_firmware	—	cpe:2.3:o:qualcomm:sd888_firmware:-:::::::*
qualcomm	sdm429w_firmware	—	cpe:2.3:o:qualcomm:sdm429w_firmware:-:::::::*
qualcomm	sdx61_firmware	—	cpe:2.3:o:qualcomm:sdx61_firmware:-:::::::*
qualcomm	sg4150p_firmware	—	cpe:2.3:o:qualcomm:sg4150p_firmware:-:::::::*
qualcomm	sg8275p_firmware	—	cpe:2.3:o:qualcomm:sg8275p_firmware:-:::::::*
qualcomm	sm4125_firmware	—	cpe:2.3:o:qualcomm:sm4125_firmware:-:::::::*
qualcomm	sm4635_firmware	—	cpe:2.3:o:qualcomm:sm4635_firmware:-:::::::*
qualcomm	sm6250_firmware	—	cpe:2.3:o:qualcomm:sm6250_firmware:-:::::::*
qualcomm	sm6370_firmware	—	cpe:2.3:o:qualcomm:sm6370_firmware:-:::::::*
qualcomm	sm6650_firmware	—	cpe:2.3:o:qualcomm:sm6650_firmware:-:::::::*
qualcomm	sm6650p_firmware	—	cpe:2.3:o:qualcomm:sm6650p_firmware:-:::::::*
qualcomm	sm7250p_firmware	—	cpe:2.3:o:qualcomm:sm7250p_firmware:-:::::::*
qualcomm	sm7315_firmware	—	cpe:2.3:o:qualcomm:sm7315_firmware:-:::::::*
qualcomm	sm7325p_firmware	—	cpe:2.3:o:qualcomm:sm7325p_firmware:-:::::::*
qualcomm	sm7635_firmware	—	cpe:2.3:o:qualcomm:sm7635_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	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	sm8735_firmware	—	cpe:2.3:o:qualcomm:sm8735_firmware:-:::::::*
qualcomm	sm8750_firmware	—	cpe:2.3:o:qualcomm:sm8750_firmware:-:::::::*
qualcomm	sm8750p_firmware	—	cpe:2.3:o:qualcomm:sm8750p_firmware:-:::::::*
qualcomm	smart_audio_400_firmware	—	cpe:2.3:o:qualcomm:smart_audio_400_firmware:-:::::::*
qualcomm	smart_display_200_firmware	—	cpe:2.3:o:qualcomm:smart_display_200_firmware:-:::::::*
qualcomm	snapdragon_4_gen_1_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_4_gen_1_mobile_firmware:-:::::::*
qualcomm	snapdragon_4_gen_2_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_4_gen_2_mobile_firmware:-:::::::*
qualcomm	snapdragon_425_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_425_mobile_firmware:-:::::::*
qualcomm	snapdragon_427_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_427_mobile_firmware:-:::::::*
qualcomm	snapdragon_429_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_429_mobile_firmware:-:::::::*
qualcomm	snapdragon_430_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_430_mobile_firmware:-:::::::*
qualcomm	snapdragon_435_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_435_mobile_firmware:-:::::::*
qualcomm	snapdragon_439_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_439_mobile_firmware:-:::::::*
qualcomm	snapdragon_450_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_450_mobile_firmware:-:::::::*
qualcomm	snapdragon_460_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_460_mobile_firmware:-:::::::*
qualcomm	snapdragon_480_5g_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_480_5g_mobile_firmware:-:::::::*
qualcomm	snapdragon_480\+_5g_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_480\+_5g_mobile_firmware:-:::::::*
qualcomm	snapdragon_625_mobile_firmware	—	cpe:2.3:o:qualcomm:snapdragon_625_mobile_firmware:-:::::::*
qualcomm	csra6640_firmware	—	cpe:2.3:o:qualcomm:csra6640_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_6800_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6800_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	flight_rb5_5g_firmware	—	cpe:2.3:o:qualcomm:flight_rb5_5g_firmware:-:::::::*
qualcomm	home_hub_100_firmware	—	cpe:2.3:o:qualcomm:home_hub_100_firmware:-:::::::*
qualcomm	pm8937_firmware	—	cpe:2.3:o:qualcomm:pm8937_firmware:-:::::::*
qualcomm	qam8255p_firmware	—	cpe:2.3:o:qualcomm:qam8255p_firmware:-:::::::*
qualcomm	qam8295p_firmware	—	cpe:2.3:o:qualcomm:qam8295p_firmware:-:::::::*
qualcomm	qam8620p_firmware	—	cpe:2.3:o:qualcomm:qam8620p_firmware:-:::::::*
qualcomm	qam8650p_firmware	—	cpe:2.3:o:qualcomm:qam8650p_firmware:-:::::::*
qualcomm	qam8775p_firmware	—	cpe:2.3:o:qualcomm:qam8775p_firmware:-:::::::*
qualcomm	qamsrv1h_firmware	—	cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:::::::*
qualcomm	qamsrv1m_firmware	—	cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:::::::*
qualcomm	qca6174a_firmware	—	cpe:2.3:o:qualcomm:qca6174a_firmware:-:::::::*
qualcomm	qca6391_firmware	—	cpe:2.3:o:qualcomm:qca6391_firmware:-:::::::*
qualcomm	qca6420_firmware	—	cpe:2.3:o:qualcomm:qca6420_firmware:-:::::::*
qualcomm	qca6421_firmware	—	cpe:2.3:o:qualcomm:qca6421_firmware:-:::::::*
qualcomm	qca6426_firmware	—	cpe:2.3:o:qualcomm:qca6426_firmware:-:::::::*
qualcomm	qca6430_firmware	—	cpe:2.3:o:qualcomm:qca6430_firmware:-:::::::*
qualcomm	qca6431_firmware	—	cpe:2.3:o:qualcomm:qca6431_firmware:-:::::::*
qualcomm	qca6436_firmware	—	cpe:2.3:o:qualcomm:qca6436_firmware:-:::::::*
qualcomm	qca6574_firmware	—	cpe:2.3:o:qualcomm:qca6574_firmware:-:::::::*
qualcomm	qca6574a_firmware	—	cpe:2.3:o:qualcomm:qca6574a_firmware:-:::::::*
qualcomm	qca6574au_firmware	—	cpe:2.3:o:qualcomm:qca6574au_firmware:-:::::::*
qualcomm	qca6584au_firmware	—	cpe:2.3:o:qualcomm:qca6584au_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	qca6688aq_firmware	—	cpe:2.3:o:qualcomm:qca6688aq_firmware:-:::::::*
qualcomm	qca6696_firmware	—	cpe:2.3:o:qualcomm:qca6696_firmware:-:::::::*
qualcomm	qca6698aq_firmware	—	cpe:2.3:o:qualcomm:qca6698aq_firmware:-:::::::*
qualcomm	qca6698au_firmware	—	cpe:2.3:o:qualcomm:qca6698au_firmware:-:::::::*

References for CVE-2025-21433

URL	Tags
https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2025-bulletin.html	Vendor Advisory

URL

CVE-2025-21433 | NULL Pointer Dereference in SPS-HLOS

Exploit prediction scoring system (EPSS) score for CVE-2025-21433

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21433

Weakness enumeration for CVE-2025-21433

Affected software / configurations for CVE-2025-21433

References for CVE-2025-21433