CVE-2022-25738 [High] | Out-of-bounds Read in Ar8031 Firmware

CVE-2022-25738 is rated Moderate Risk (43.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.38%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.24%	0.38%	+0.14%
2	2026-02-13	0.10%	0.24%	+0.14%
3	2025-11-21	—	0.10%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.24%

0.38%

+0.14%

2026-02-13

0.10%

0.24%

+0.14%

2025-11-21

—

0.10%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.2	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L` 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:N) Data isn’t meaningfully altered or forged. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	3.9	4.2	[email protected]
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N` 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:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	3.9	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.2

3.1

HIGH

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

3.9

4.2

[email protected]

7.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 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:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

3.9

3.6

[email protected]

Affected software / configurations for CVE-2022-25738

Vendor	Product	Version	Raw CPE
qualcomm	ar8031_firmware	—	cpe:2.3:o:qualcomm:ar8031_firmware:-:::::::*
qualcomm	csra6620_firmware	—	cpe:2.3:o:qualcomm:csra6620_firmware:-:::::::*
qualcomm	csra6640_firmware	—	cpe:2.3:o:qualcomm:csra6640_firmware:-:::::::*
qualcomm	mdm8207_firmware	—	cpe:2.3:o:qualcomm:mdm8207_firmware:-:::::::*
qualcomm	mdm9205_firmware	—	cpe:2.3:o:qualcomm:mdm9205_firmware:-:::::::*
qualcomm	mdm9206_firmware	—	cpe:2.3:o:qualcomm:mdm9206_firmware:-:::::::*
qualcomm	mdm9207_firmware	—	cpe:2.3:o:qualcomm:mdm9207_firmware:-:::::::*
qualcomm	mdm9607_firmware	—	cpe:2.3:o:qualcomm:mdm9607_firmware:-:::::::*
qualcomm	qca4004_firmware	—	cpe:2.3:o:qualcomm:qca4004_firmware:-:::::::*
qualcomm	qca4010_firmware	—	cpe:2.3:o:qualcomm:qca4010_firmware:-:::::::*
qualcomm	qca4020_firmware	—	cpe:2.3:o:qualcomm:qca4020_firmware:-:::::::*
qualcomm	qca4024_firmware	—	cpe:2.3:o:qualcomm:qca4024_firmware:-:::::::*
qualcomm	qcs405_firmware	—	cpe:2.3:o:qualcomm:qcs405_firmware:-:::::::*
qualcomm	qts110_firmware	—	cpe:2.3:o:qualcomm:qts110_firmware:-:::::::*
qualcomm	ssg2115p_firmware	—	cpe:2.3:o:qualcomm:ssg2115p_firmware:-:::::::*
qualcomm	ssg2125p_firmware	—	cpe:2.3:o:qualcomm:ssg2125p_firmware:-:::::::*
qualcomm	sxr1230p_firmware	—	cpe:2.3:o:qualcomm:sxr1230p_firmware:-:::::::*
qualcomm	sxr2230p_firmware	—	cpe:2.3:o:qualcomm:sxr2230p_firmware:-:::::::*
qualcomm	wcd9306_firmware	—	cpe:2.3:o:qualcomm:wcd9306_firmware:-:::::::*
qualcomm	wcd9330_firmware	—	cpe:2.3:o:qualcomm:wcd9330_firmware:-:::::::*
qualcomm	wcd9335_firmware	—	cpe:2.3:o:qualcomm:wcd9335_firmware:-:::::::*
qualcomm	wcd9380_firmware	—	cpe:2.3:o:qualcomm:wcd9380_firmware:-:::::::*
qualcomm	wcd9385_firmware	—	cpe:2.3:o:qualcomm:wcd9385_firmware:-:::::::*
qualcomm	wcn3980_firmware	—	cpe:2.3:o:qualcomm:wcn3980_firmware:-:::::::*
qualcomm	wcn3998_firmware	—	cpe:2.3:o:qualcomm:wcn3998_firmware:-:::::::*
qualcomm	wcn3999_firmware	—	cpe:2.3:o:qualcomm:wcn3999_firmware:-:::::::*
qualcomm	wcn6855_firmware	—	cpe:2.3:o:qualcomm:wcn6855_firmware:-:::::::*
qualcomm	wcn6856_firmware	—	cpe:2.3:o:qualcomm:wcn6856_firmware:-:::::::*
qualcomm	wcn7850_firmware	—	cpe:2.3:o:qualcomm:wcn7850_firmware:-:::::::*
qualcomm	wcn7851_firmware	—	cpe:2.3:o:qualcomm:wcn7851_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:-:::::::*

References for CVE-2022-25738

URL	Tags
https://www.qualcomm.com/company/product-security/bulletins/february-2023-bulletin	Vendor Advisory

URL

CVE-2022-25738 | Buffer Over-read in MODEM

Exploit prediction scoring system (EPSS) score for CVE-2022-25738

Common vulnerability scoring system (CVSS) metrics for CVE-2022-25738

Weakness enumeration for CVE-2022-25738

Affected software / configurations for CVE-2022-25738

References for CVE-2022-25738