CVE-2022-25678 [Critical] | Security Vulnerability in Mdm8207 Firmware

CVE-2022-25678 is rated Moderate Risk (50.9/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.42%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.26%	0.42%	+0.16%
2	2026-04-14	0.17%	0.26%	+0.09%
3	2025-07-05	—	0.17%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.26%

0.42%

+0.16%

2026-04-14

0.17%

0.26%

+0.09%

2025-07-05

—

0.17%

—

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]
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]

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-2022-25678

Vendor	Product	Version	Raw CPE
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	qca4004_firmware	—	cpe:2.3:o:qualcomm:qca4004_firmware:-:::::::*
qualcomm	qts110_firmware	—	cpe:2.3:o:qualcomm:qts110_firmware:-:::::::*
qualcomm	snapdragon_wear_1100_firmware	—	cpe:2.3:o:qualcomm:snapdragon_wear_1100_firmware:-:::::::*
qualcomm	snapdragon_wear_1200_firmware	—	cpe:2.3:o:qualcomm:snapdragon_wear_1200_firmware:-:::::::*
qualcomm	snapdragon_wear_1300_firmware	—	cpe:2.3:o:qualcomm:snapdragon_wear_1300_firmware:-:::::::*
qualcomm	snapdragon_x5_lte_modem_firmware	—	cpe:2.3:o:qualcomm:snapdragon_x5_lte_modem_firmware:-:::::::*
qualcomm	wcd9306_firmware	—	cpe:2.3:o:qualcomm:wcd9306_firmware:-:::::::*
qualcomm	wcd9330_firmware	—	cpe:2.3:o:qualcomm:wcd9330_firmware:-:::::::*

References for CVE-2022-25678

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

URL

CVE-2022-25678 | Buffer Copy Without Checking Size of Input in MODEM

Exploit prediction scoring system (EPSS) score for CVE-2022-25678

Common vulnerability scoring system (CVSS) metrics for CVE-2022-25678

Weakness enumeration for CVE-2022-25678

Affected software / configurations for CVE-2022-25678

References for CVE-2022-25678