CVE-2025-21463 [High] | Denial of Service in Ar8035 Firmware

CVE-2025-21463 is rated Moderate Risk (50.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.35%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-30	0.06%	0.35%	+0.29%
2	2025-11-11	0.05%	0.06%	+0.01%
3	2025-10-31	—	0.05%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-30

0.06%

0.35%

+0.29%

2025-11-11

0.05%

0.06%

+0.01%

2025-10-31

—

0.05%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: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.	3.9	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: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.

3.9

3.6

[email protected]

Affected software / configurations for CVE-2025-21463

Vendor	Product	Version	Raw CPE
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	csr8811_firmware	—	cpe:2.3:o:qualcomm:csr8811_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	qca4024_firmware	—	cpe:2.3:o:qualcomm:qca4024_firmware:-:::::::*
qualcomm	qca6391_firmware	—	cpe:2.3:o:qualcomm:qca6391_firmware:-:::::::*
qualcomm	qca6554a_firmware	—	cpe:2.3:o:qualcomm:qca6554a_firmware:-:::::::*
qualcomm	qca6564au_firmware	—	cpe:2.3:o:qualcomm:qca6564au_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	qca6777aq_firmware	—	cpe:2.3:o:qualcomm:qca6777aq_firmware:-:::::::*
qualcomm	qca6787aq_firmware	—	cpe:2.3:o:qualcomm:qca6787aq_firmware:-:::::::*
qualcomm	qca6797aq_firmware	—	cpe:2.3:o:qualcomm:qca6797aq_firmware:-:::::::*
qualcomm	qca8075_firmware	—	cpe:2.3:o:qualcomm:qca8075_firmware:-:::::::*
qualcomm	qca8080_firmware	—	cpe:2.3:o:qualcomm:qca8080_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	qca8101_firmware	—	cpe:2.3:o:qualcomm:qca8101_firmware:-:::::::*
qualcomm	qca8102_firmware	—	cpe:2.3:o:qualcomm:qca8102_firmware:-:::::::*
qualcomm	qca8111_firmware	—	cpe:2.3:o:qualcomm:qca8111_firmware:-:::::::*
qualcomm	qca8112_firmware	—	cpe:2.3:o:qualcomm:qca8112_firmware:-:::::::*
qualcomm	qca8337_firmware	—	cpe:2.3:o:qualcomm:qca8337_firmware:-:::::::*
qualcomm	qca8384_firmware	—	cpe:2.3:o:qualcomm:qca8384_firmware:-:::::::*
qualcomm	qca8385_firmware	—	cpe:2.3:o:qualcomm:qca8385_firmware:-:::::::*
qualcomm	qca8386_firmware	—	cpe:2.3:o:qualcomm:qca8386_firmware:-:::::::*
qualcomm	qca9888_firmware	—	cpe:2.3:o:qualcomm:qca9888_firmware:-:::::::*
qualcomm	qca9889_firmware	—	cpe:2.3:o:qualcomm:qca9889_firmware:-:::::::*
qualcomm	qcc2073_firmware	—	cpe:2.3:o:qualcomm:qcc2073_firmware:-:::::::*
qualcomm	qcc2076_firmware	—	cpe:2.3:o:qualcomm:qcc2076_firmware:-:::::::*
qualcomm	qcc710_firmware	—	cpe:2.3:o:qualcomm:qcc710_firmware:-:::::::*
qualcomm	qcf8000_firmware	—	cpe:2.3:o:qualcomm:qcf8000_firmware:-:::::::*
qualcomm	qcf8000sfp_firmware	—	cpe:2.3:o:qualcomm:qcf8000sfp_firmware:-:::::::*
qualcomm	qcf8001_firmware	—	cpe:2.3:o:qualcomm:qcf8001_firmware:-:::::::*
qualcomm	qcm5430_firmware	—	cpe:2.3:o:qualcomm:qcm5430_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	flight_rb5_5g_platform_firmware	—	cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:::::::*
qualcomm	immersive_home_214_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_214_platform_firmware:-:::::::*
qualcomm	immersive_home_216_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_216_platform_firmware:-:::::::*
qualcomm	immersive_home_316_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_316_platform_firmware:-:::::::*
qualcomm	immersive_home_318_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_318_platform_firmware:-:::::::*
qualcomm	immersive_home_3210_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_3210_platform_firmware:-:::::::*
qualcomm	immersive_home_326_platform_firmware	—	cpe:2.3:o:qualcomm:immersive_home_326_platform_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	ipq5424_firmware	—	cpe:2.3:o:qualcomm:ipq5424_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	ipq8070a_firmware	—	cpe:2.3:o:qualcomm:ipq8070a_firmware:-:::::::*
qualcomm	ipq8071a_firmware	—	cpe:2.3:o:qualcomm:ipq8071a_firmware:-:::::::*
qualcomm	ipq8072a_firmware	—	cpe:2.3:o:qualcomm:ipq8072a_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:-:::::::*

References for CVE-2025-21463

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

URL

CVE-2025-21463 | Buffer Over-read in WLAN Host Communication

Exploit prediction scoring system (EPSS) score for CVE-2025-21463

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21463

Weakness enumeration for CVE-2025-21463

Affected software / configurations for CVE-2025-21463

References for CVE-2025-21463