CVE-2024-21473 [Critical] | Input Validation Bypass in Ar8035 Firmware

CVE-2024-21473 is rated Moderate Risk (51.5/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.14%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-21	0.24%	0.14%	-0.10%
2	2025-11-18	0.14%	0.24%	+0.10%
3	2025-10-01	—	0.14%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

0.24%

0.14%

-0.10%

2025-11-18

0.14%

0.24%

+0.10%

2025-10-01

—

0.14%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. 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: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.	3.9	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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: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.

3.9

5.9

[email protected]

Affected software / configurations for CVE-2024-21473

Vendor	Product	Version	Raw CPE
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	ar9380_firmware	—	cpe:2.3:o:qualcomm:ar9380_firmware:-:::::::*
qualcomm	csr8811_firmware	—	cpe:2.3:o:qualcomm:csr8811_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	immersive_home_214_firmware	—	cpe:2.3:o:qualcomm:immersive_home_214_firmware:-:::::::*
qualcomm	immersive_home_216_firmware	—	cpe:2.3:o:qualcomm:immersive_home_216_firmware:-:::::::*
qualcomm	immersive_home_316_firmware	—	cpe:2.3:o:qualcomm:immersive_home_316_firmware:-:::::::*
qualcomm	immersive_home_318_firmware	—	cpe:2.3:o:qualcomm:immersive_home_318_firmware:-:::::::*
qualcomm	immersive_home_3210_firmware	—	cpe:2.3:o:qualcomm:immersive_home_3210_firmware:-:::::::*
qualcomm	immersive_home_326_firmware	—	cpe:2.3:o:qualcomm:immersive_home_326_firmware:-:::::::*
qualcomm	ipq4018_firmware	—	cpe:2.3:o:qualcomm:ipq4018_firmware:-:::::::*
qualcomm	ipq4019_firmware	—	cpe:2.3:o:qualcomm:ipq4019_firmware:-:::::::*
qualcomm	ipq4028_firmware	—	cpe:2.3:o:qualcomm:ipq4028_firmware:-:::::::*
qualcomm	ipq4029_firmware	—	cpe:2.3:o:qualcomm:ipq4029_firmware:-:::::::*
qualcomm	ipq5010_firmware	—	cpe:2.3:o:qualcomm:ipq5010_firmware:-:::::::*
qualcomm	ipq5028_firmware	—	cpe:2.3:o:qualcomm:ipq5028_firmware:-:::::::*
qualcomm	ipq5300_firmware	—	cpe:2.3:o:qualcomm:ipq5300_firmware:-:::::::*
qualcomm	ipq5302_firmware	—	cpe:2.3:o:qualcomm:ipq5302_firmware:-:::::::*
qualcomm	ipq5312_firmware	—	cpe:2.3:o:qualcomm:ipq5312_firmware:-:::::::*
qualcomm	ipq5332_firmware	—	cpe:2.3:o:qualcomm:ipq5332_firmware:-:::::::*
qualcomm	ipq6000_firmware	—	cpe:2.3:o:qualcomm:ipq6000_firmware:-:::::::*
qualcomm	ipq6010_firmware	—	cpe:2.3:o:qualcomm:ipq6010_firmware:-:::::::*
qualcomm	ipq6018_firmware	—	cpe:2.3:o:qualcomm:ipq6018_firmware:-:::::::*
qualcomm	ipq6028_firmware	—	cpe:2.3:o:qualcomm:ipq6028_firmware:-:::::::*
qualcomm	ipq8064_firmware	—	cpe:2.3:o:qualcomm:ipq8064_firmware:-:::::::*
qualcomm	ipq8065_firmware	—	cpe:2.3:o:qualcomm:ipq8065_firmware:-:::::::*
qualcomm	ipq8068_firmware	—	cpe:2.3:o:qualcomm:ipq8068_firmware:-:::::::*
qualcomm	ipq8070_firmware	—	cpe:2.3:o:qualcomm:ipq8070_firmware:-:::::::*
qualcomm	ipq8070a_firmware	—	cpe:2.3:o:qualcomm:ipq8070a_firmware:-:::::::*
qualcomm	ipq8071_firmware	—	cpe:2.3:o:qualcomm:ipq8071_firmware:-:::::::*
qualcomm	ipq8071a_firmware	—	cpe:2.3:o:qualcomm:ipq8071a_firmware:-:::::::*
qualcomm	ipq8072_firmware	—	cpe:2.3:o:qualcomm:ipq8072_firmware:-:::::::*
qualcomm	ipq8072a_firmware	—	cpe:2.3:o:qualcomm:ipq8072a_firmware:-:::::::*
qualcomm	ipq8074_firmware	—	cpe:2.3:o:qualcomm:ipq8074_firmware:-:::::::*
qualcomm	ipq8074a_firmware	—	cpe:2.3:o:qualcomm:ipq8074a_firmware:-:::::::*
qualcomm	ipq8076_firmware	—	cpe:2.3:o:qualcomm:ipq8076_firmware:-:::::::*
qualcomm	ipq8076a_firmware	—	cpe:2.3:o:qualcomm:ipq8076a_firmware:-:::::::*
qualcomm	ipq8078_firmware	—	cpe:2.3:o:qualcomm:ipq8078_firmware:-:::::::*
qualcomm	ipq8078a_firmware	—	cpe:2.3:o:qualcomm:ipq8078a_firmware:-:::::::*
qualcomm	ipq8173_firmware	—	cpe:2.3:o:qualcomm:ipq8173_firmware:-:::::::*
qualcomm	ipq8174_firmware	—	cpe:2.3:o:qualcomm:ipq8174_firmware:-:::::::*
qualcomm	ipq9008_firmware	—	cpe:2.3:o:qualcomm:ipq9008_firmware:-:::::::*
qualcomm	ipq9554_firmware	—	cpe:2.3:o:qualcomm:ipq9554_firmware:-:::::::*
qualcomm	ipq9570_firmware	—	cpe:2.3:o:qualcomm:ipq9570_firmware:-:::::::*
qualcomm	ipq9574_firmware	—	cpe:2.3:o:qualcomm:ipq9574_firmware:-:::::::*
qualcomm	pmp8074_firmware	—	cpe:2.3:o:qualcomm:pmp8074_firmware:-:::::::*
qualcomm	qca0000_firmware	—	cpe:2.3:o:qualcomm:qca0000_firmware:-:::::::*
qualcomm	qca4024_firmware	—	cpe:2.3:o:qualcomm:qca4024_firmware:-:::::::*
qualcomm	qca6428_firmware	—	cpe:2.3:o:qualcomm:qca6428_firmware:-:::::::*
qualcomm	qca6438_firmware	—	cpe:2.3:o:qualcomm:qca6438_firmware:-:::::::*
qualcomm	qca7500_firmware	—	cpe:2.3:o:qualcomm:qca7500_firmware:-:::::::*
qualcomm	qca8072_firmware	—	cpe:2.3:o:qualcomm:qca8072_firmware:-:::::::*
qualcomm	qca8075_firmware	—	cpe:2.3:o:qualcomm:qca8075_firmware:-:::::::*
qualcomm	qca8081_firmware	—	cpe:2.3:o:qualcomm:qca8081_firmware:-:::::::*
qualcomm	qca8082_firmware	—	cpe:2.3:o:qualcomm:qca8082_firmware:-:::::::*
qualcomm	qca8084_firmware	—	cpe:2.3:o:qualcomm:qca8084_firmware:-:::::::*
qualcomm	qca8085_firmware	—	cpe:2.3:o:qualcomm:qca8085_firmware:-:::::::*
qualcomm	qca8337_firmware	—	cpe:2.3:o:qualcomm:qca8337_firmware:-:::::::*
qualcomm	qca8386_firmware	—	cpe:2.3:o:qualcomm:qca8386_firmware:-:::::::*
qualcomm	qca9531_firmware	—	cpe:2.3:o:qualcomm:qca9531_firmware:-:::::::*
qualcomm	qca9558_firmware	—	cpe:2.3:o:qualcomm:qca9558_firmware:-:::::::*
qualcomm	qca9563_firmware	—	cpe:2.3:o:qualcomm:qca9563_firmware:-:::::::*
qualcomm	qca9880_firmware	—	cpe:2.3:o:qualcomm:qca9880_firmware:-:::::::*
qualcomm	qca9886_firmware	—	cpe:2.3:o:qualcomm:qca9886_firmware:-:::::::*
qualcomm	qca9888_firmware	—	cpe:2.3:o:qualcomm:qca9888_firmware:-:::::::*
qualcomm	qca9889_firmware	—	cpe:2.3:o:qualcomm:qca9889_firmware:-:::::::*
qualcomm	qca9898_firmware	—	cpe:2.3:o:qualcomm:qca9898_firmware:-:::::::*
qualcomm	qca9980_firmware	—	cpe:2.3:o:qualcomm:qca9980_firmware:-:::::::*
qualcomm	qca9984_firmware	—	cpe:2.3:o:qualcomm:qca9984_firmware:-:::::::*
qualcomm	qca9985_firmware	—	cpe:2.3:o:qualcomm:qca9985_firmware:-:::::::*
qualcomm	qca9986_firmware	—	cpe:2.3:o:qualcomm:qca9986_firmware:-:::::::*
qualcomm	qca9988_firmware	—	cpe:2.3:o:qualcomm:qca9988_firmware:-:::::::*
qualcomm	qca9990_firmware	—	cpe:2.3:o:qualcomm:qca9990_firmware:-:::::::*
qualcomm	qca9992_firmware	—	cpe:2.3:o:qualcomm:qca9992_firmware:-:::::::*
qualcomm	qca9994_firmware	—	cpe:2.3:o:qualcomm:qca9994_firmware:-:::::::*
qualcomm	qcc710_firmware	—	cpe:2.3:o:qualcomm:qcc710_firmware:-:::::::*
qualcomm	qcf8000_firmware	—	cpe:2.3:o:qualcomm:qcf8000_firmware:-:::::::*
qualcomm	qcf8001_firmware	—	cpe:2.3:o:qualcomm:qcf8001_firmware:-:::::::*
qualcomm	qcn5021_firmware	—	cpe:2.3:o:qualcomm:qcn5021_firmware:-:::::::*

References for CVE-2024-21473

URL	Tags
https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2024-bulletin.html	Vendor Advisory

URL

CVE-2024-21473 | Improper Input Validation in WIN SON

Exploit prediction scoring system (EPSS) score for CVE-2024-21473

Common vulnerability scoring system (CVSS) metrics for CVE-2024-21473

Weakness enumeration for CVE-2024-21473

Affected software / configurations for CVE-2024-21473

References for CVE-2024-21473