CVE-2025-47331 [Medium] | Information Disclosure in Ar8031 Firmware

CVE-2025-47331 is rated Low Risk (25/100): CVSS Medium 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	2026-01-07	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-01-07

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.1	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L` 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:N) Data isn’t meaningfully altered or forged. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	1.8	4.2	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.1

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L 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:N): Data isn’t meaningfully altered or forged.
Availability (A:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

1.8

4.2

[email protected]

Affected software / configurations for CVE-2025-47331

Vendor	Product	Version	Raw CPE
qualcomm	ar8031_firmware	—	cpe:2.3:o:qualcomm:ar8031_firmware:-:::::::*
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	csr8811_firmware	—	cpe:2.3:o:qualcomm:csr8811_firmware:-:::::::*
qualcomm	csra6620_firmware	—	cpe:2.3:o:qualcomm:csra6620_firmware:-:::::::*
qualcomm	csra6640_firmware	—	cpe:2.3:o:qualcomm:csra6640_firmware:-:::::::*
qualcomm	qcf8000sfp_firmware	—	cpe:2.3:o:qualcomm:qcf8000sfp_firmware:-:::::::*
qualcomm	qcf8001_firmware	—	cpe:2.3:o:qualcomm:qcf8001_firmware:-:::::::*
qualcomm	qcm2290_firmware	—	cpe:2.3:o:qualcomm:qcm2290_firmware:-:::::::*
qualcomm	qcm4490_firmware	—	cpe:2.3:o:qualcomm:qcm4490_firmware:-:::::::*
qualcomm	qcm5430_firmware	—	cpe:2.3:o:qualcomm:qcm5430_firmware:-:::::::*
qualcomm	qcm6125_firmware	—	cpe:2.3:o:qualcomm:qcm6125_firmware:-:::::::*
qualcomm	qcm6490_firmware	—	cpe:2.3:o:qualcomm:qcm6490_firmware:-:::::::*
qualcomm	qcm8550_firmware	—	cpe:2.3:o:qualcomm:qcm8550_firmware:-:::::::*
qualcomm	qcn5022_firmware	—	cpe:2.3:o:qualcomm:qcn5022_firmware:-:::::::*
qualcomm	qcn5024_firmware	—	cpe:2.3:o:qualcomm:qcn5024_firmware:-:::::::*
qualcomm	qcn5052_firmware	—	cpe:2.3:o:qualcomm:qcn5052_firmware:-:::::::*
qualcomm	qcn5054_firmware	—	cpe:2.3:o:qualcomm:qcn5054_firmware:-:::::::*
qualcomm	qcn5122_firmware	—	cpe:2.3:o:qualcomm:qcn5122_firmware:-:::::::*
qualcomm	qcn5124_firmware	—	cpe:2.3:o:qualcomm:qcn5124_firmware:-:::::::*
qualcomm	qcn5152_firmware	—	cpe:2.3:o:qualcomm:qcn5152_firmware:-:::::::*
qualcomm	qcn5154_firmware	—	cpe:2.3:o:qualcomm:qcn5154_firmware:-:::::::*
qualcomm	qcn5164_firmware	—	cpe:2.3:o:qualcomm:qcn5164_firmware:-:::::::*
qualcomm	qcn6023_firmware	—	cpe:2.3:o:qualcomm:qcn6023_firmware:-:::::::*
qualcomm	qcn6024_firmware	—	cpe:2.3:o:qualcomm:qcn6024_firmware:-:::::::*
qualcomm	qcn6100_firmware	—	cpe:2.3:o:qualcomm:qcn6100_firmware:-:::::::*
qualcomm	qcn6102_firmware	—	cpe:2.3:o:qualcomm:qcn6102_firmware:-:::::::*
qualcomm	qcn6112_firmware	—	cpe:2.3:o:qualcomm:qcn6112_firmware:-:::::::*
qualcomm	qcn6122_firmware	—	cpe:2.3:o:qualcomm:qcn6122_firmware:-:::::::*
qualcomm	qcn6132_firmware	—	cpe:2.3:o:qualcomm:qcn6132_firmware:-:::::::*
qualcomm	qcn6224_firmware	—	cpe:2.3:o:qualcomm:qcn6224_firmware:-:::::::*
qualcomm	qcn6274_firmware	—	cpe:2.3:o:qualcomm:qcn6274_firmware:-:::::::*
qualcomm	qcn6402_firmware	—	cpe:2.3:o:qualcomm:qcn6402_firmware:-:::::::*
qualcomm	qcn6412_firmware	—	cpe:2.3:o:qualcomm:qcn6412_firmware:-:::::::*
qualcomm	qcn6422_firmware	—	cpe:2.3:o:qualcomm:qcn6422_firmware:-:::::::*
qualcomm	qcn6432_firmware	—	cpe:2.3:o:qualcomm:qcn6432_firmware:-:::::::*
qualcomm	qcn9000_firmware	—	cpe:2.3:o:qualcomm:qcn9000_firmware:-:::::::*
qualcomm	qcn9001_firmware	—	cpe:2.3:o:qualcomm:qcn9001_firmware:-:::::::*
qualcomm	qcn9002_firmware	—	cpe:2.3:o:qualcomm:qcn9002_firmware:-:::::::*
qualcomm	qcn9003_firmware	—	cpe:2.3:o:qualcomm:qcn9003_firmware:-:::::::*
qualcomm	qcn9011_firmware	—	cpe:2.3:o:qualcomm:qcn9011_firmware:-:::::::*
qualcomm	qcn9012_firmware	—	cpe:2.3:o:qualcomm:qcn9012_firmware:-:::::::*
qualcomm	qcn9022_firmware	—	cpe:2.3:o:qualcomm:qcn9022_firmware:-:::::::*
qualcomm	qcn9024_firmware	—	cpe:2.3:o:qualcomm:qcn9024_firmware:-:::::::*
qualcomm	qcn9070_firmware	—	cpe:2.3:o:qualcomm:qcn9070_firmware:-:::::::*
qualcomm	qcn9072_firmware	—	cpe:2.3:o:qualcomm:qcn9072_firmware:-:::::::*
qualcomm	snapdragon_x55_5g_modem-rf_system_firmware	—	cpe:2.3:o:qualcomm:snapdragon_x55_5g_modem-rf_system_firmware:-:::::::*
qualcomm	snapdragon_x65_5g_modem-rf_system_firmware	—	cpe:2.3:o:qualcomm:snapdragon_x65_5g_modem-rf_system_firmware:-:::::::*
qualcomm	snapdragon_x72_5g_modem-rf_system_firmware	—	cpe:2.3:o:qualcomm:snapdragon_x72_5g_modem-rf_system_firmware:-:::::::*
qualcomm	snapdragon_x75_5g_modem-rf_system_firmware	—	cpe:2.3:o:qualcomm:snapdragon_x75_5g_modem-rf_system_firmware:-:::::::*
qualcomm	snapdragon_xr2_5g_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_xr2_5g_platform_firmware:-:::::::*
qualcomm	snapdragon_xr2\+_gen_1_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_xr2\+_gen_1_platform_firmware:-:::::::*
qualcomm	srv1h_firmware	—	cpe:2.3:o:qualcomm:srv1h_firmware:-:::::::*
qualcomm	srv1m_firmware	—	cpe:2.3:o:qualcomm:srv1m_firmware:-:::::::*
qualcomm	ssg2115p_firmware	—	cpe:2.3:o:qualcomm:ssg2115p_firmware:-:::::::*
qualcomm	ssg2125p_firmware	—	cpe:2.3:o:qualcomm:ssg2125p_firmware:-:::::::*
qualcomm	sw5100_firmware	—	cpe:2.3:o:qualcomm:sw5100_firmware:-:::::::*
qualcomm	sw5100p_firmware	—	cpe:2.3:o:qualcomm:sw5100p_firmware:-:::::::*
qualcomm	sxr1230p_firmware	—	cpe:2.3:o:qualcomm:sxr1230p_firmware:-:::::::*
qualcomm	sxr2230p_firmware	—	cpe:2.3:o:qualcomm:sxr2230p_firmware:-:::::::*
qualcomm	sxr2250p_firmware	—	cpe:2.3:o:qualcomm:sxr2250p_firmware:-:::::::*
qualcomm	sxr2330p_firmware	—	cpe:2.3:o:qualcomm:sxr2330p_firmware:-:::::::*
qualcomm	sxr2350p_firmware	—	cpe:2.3:o:qualcomm:sxr2350p_firmware:-:::::::*
qualcomm	wcd9326_firmware	—	cpe:2.3:o:qualcomm:wcd9326_firmware:-:::::::*
qualcomm	wcd9335_firmware	—	cpe:2.3:o:qualcomm:wcd9335_firmware:-:::::::*
qualcomm	wcd9340_firmware	—	cpe:2.3:o:qualcomm:wcd9340_firmware:-:::::::*
qualcomm	wcd9341_firmware	—	cpe:2.3:o:qualcomm:wcd9341_firmware:-:::::::*
qualcomm	wcd9370_firmware	—	cpe:2.3:o:qualcomm:wcd9370_firmware:-:::::::*
qualcomm	wcd9371_firmware	—	cpe:2.3:o:qualcomm:wcd9371_firmware:-:::::::*
qualcomm	wcd9375_firmware	—	cpe:2.3:o:qualcomm:wcd9375_firmware:-:::::::*
qualcomm	wcd9378_firmware	—	cpe:2.3:o:qualcomm:wcd9378_firmware:-:::::::*
qualcomm	wcd9380_firmware	—	cpe:2.3:o:qualcomm:wcd9380_firmware:-:::::::*
qualcomm	wcd9385_firmware	—	cpe:2.3:o:qualcomm:wcd9385_firmware:-:::::::*
qualcomm	wcd9390_firmware	—	cpe:2.3:o:qualcomm:wcd9390_firmware:-:::::::*
qualcomm	wcd9395_firmware	—	cpe:2.3:o:qualcomm:wcd9395_firmware:-:::::::*
qualcomm	wcn3615_firmware	—	cpe:2.3:o:qualcomm:wcn3615_firmware:-:::::::*
qualcomm	wcn3660b_firmware	—	cpe:2.3:o:qualcomm:wcn3660b_firmware:-:::::::*
qualcomm	wcn3680b_firmware	—	cpe:2.3:o:qualcomm:wcn3680b_firmware:-:::::::*
qualcomm	wcn3910_firmware	—	cpe:2.3:o:qualcomm:wcn3910_firmware:-:::::::*
qualcomm	wcn3950_firmware	—	cpe:2.3:o:qualcomm:wcn3950_firmware:-:::::::*
qualcomm	wcn3980_firmware	—	cpe:2.3:o:qualcomm:wcn3980_firmware:-:::::::*

References for CVE-2025-47331

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

URL

CVE-2025-47331 | Buffer Over-read in Video

Exploit prediction scoring system (EPSS) score for CVE-2025-47331

Common vulnerability scoring system (CVSS) metrics for CVE-2025-47331

Weakness enumeration for CVE-2025-47331

Affected software / configurations for CVE-2025-47331

References for CVE-2025-47331