CVE-2023-43519 [High] | Memory Corruption in Aqt1000 Firmware

CVE-2023-43519 is rated Low Risk (35.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.26%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.11%	0.26%	+0.16%
2	2025-11-21	0.30%	0.11%	-0.19%
3	2025-11-18	—	0.30%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.11%

0.26%

+0.16%

2025-11-21

0.30%

0.11%

-0.19%

2025-11-18

—

0.30%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.3	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	3.9	3.4	[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

7.3

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

3.9

3.4

[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-2023-43519

Vendor	Product	Version	Raw CPE
qualcomm	aqt1000_firmware	—	cpe:2.3:o:qualcomm:aqt1000_firmware:-:::::::*
qualcomm	fastconnect_6200_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:::::::*
qualcomm	fastconnect_6700_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:::::::*
qualcomm	fastconnect_6800_firmware	—	cpe:2.3:o:qualcomm:fastconnect_6800_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	qam8255p_firmware	—	cpe:2.3:o:qualcomm:qam8255p_firmware:-:::::::*
qualcomm	qam8295p_firmware	—	cpe:2.3:o:qualcomm:qam8295p_firmware:-:::::::*
qualcomm	qam8650p_firmware	—	cpe:2.3:o:qualcomm:qam8650p_firmware:-:::::::*
qualcomm	qam8775p_firmware	—	cpe:2.3:o:qualcomm:qam8775p_firmware:-:::::::*
qualcomm	qamsrv1h_firmware	—	cpe:2.3:o:qualcomm:qamsrv1h_firmware:-:::::::*
qualcomm	qamsrv1m_firmware	—	cpe:2.3:o:qualcomm:qamsrv1m_firmware:-:::::::*
qualcomm	qca6310_firmware	—	cpe:2.3:o:qualcomm:qca6310_firmware:-:::::::*
qualcomm	qca6320_firmware	—	cpe:2.3:o:qualcomm:qca6320_firmware:-:::::::*
qualcomm	qca6391_firmware	—	cpe:2.3:o:qualcomm:qca6391_firmware:-:::::::*
qualcomm	qca6420_firmware	—	cpe:2.3:o:qualcomm:qca6420_firmware:-:::::::*
qualcomm	qca6430_firmware	—	cpe:2.3:o:qualcomm:qca6430_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	qca6595_firmware	—	cpe:2.3:o:qualcomm:qca6595_firmware:-:::::::*
qualcomm	qca6595au_firmware	—	cpe:2.3:o:qualcomm:qca6595au_firmware:-:::::::*
qualcomm	qca6696_firmware	—	cpe:2.3:o:qualcomm:qca6696_firmware:-:::::::*
qualcomm	qca6698aq_firmware	—	cpe:2.3:o:qualcomm:qca6698aq_firmware:-:::::::*
qualcomm	qcm2290_firmware	—	cpe:2.3:o:qualcomm:qcm2290_firmware:-:::::::*
qualcomm	qcm4290_firmware	—	cpe:2.3:o:qualcomm:qcm4290_firmware:-:::::::*
qualcomm	qcm4490_firmware	—	cpe:2.3:o:qualcomm:qcm4490_firmware:-:::::::*
qualcomm	qcm6490_firmware	—	cpe:2.3:o:qualcomm:qcm6490_firmware:-:::::::*
qualcomm	qcn7606_firmware	—	cpe:2.3:o:qualcomm:qcn7606_firmware:-:::::::*
qualcomm	qcs2290_firmware	—	cpe:2.3:o:qualcomm:qcs2290_firmware:-:::::::*
qualcomm	qcs410_firmware	—	cpe:2.3:o:qualcomm:qcs410_firmware:-:::::::*
qualcomm	qcs4290_firmware	—	cpe:2.3:o:qualcomm:qcs4290_firmware:-:::::::*
qualcomm	qcs4490_firmware	—	cpe:2.3:o:qualcomm:qcs4490_firmware:-:::::::*
qualcomm	qcs610_firmware	—	cpe:2.3:o:qualcomm:qcs610_firmware:-:::::::*
qualcomm	qcs6490_firmware	—	cpe:2.3:o:qualcomm:qcs6490_firmware:-:::::::*
qualcomm	video_collaboration_vc1_platform_firmware	—	cpe:2.3:o:qualcomm:video_collaboration_vc1_platform_firmware:-:::::::*
qualcomm	video_collaboration_vc3_platform_firmware	—	cpe:2.3:o:qualcomm:video_collaboration_vc3_platform_firmware:-:::::::*
qualcomm	sa4150p_firmware	—	cpe:2.3:o:qualcomm:sa4150p_firmware:-:::::::*
qualcomm	sa4155p_firmware	—	cpe:2.3:o:qualcomm:sa4155p_firmware:-:::::::*
qualcomm	sa6145p_firmware	—	cpe:2.3:o:qualcomm:sa6145p_firmware:-:::::::*
qualcomm	sa6150p_firmware	—	cpe:2.3:o:qualcomm:sa6150p_firmware:-:::::::*
qualcomm	sa6155p_firmware	—	cpe:2.3:o:qualcomm:sa6155p_firmware:-:::::::*
qualcomm	sa8145p_firmware	—	cpe:2.3:o:qualcomm:sa8145p_firmware:-:::::::*
qualcomm	sa8150p_firmware	—	cpe:2.3:o:qualcomm:sa8150p_firmware:-:::::::*
qualcomm	sa8155p_firmware	—	cpe:2.3:o:qualcomm:sa8155p_firmware:-:::::::*
qualcomm	sa8195p_firmware	—	cpe:2.3:o:qualcomm:sa8195p_firmware:-:::::::*
qualcomm	sa8255p_firmware	—	cpe:2.3:o:qualcomm:sa8255p_firmware:-:::::::*
qualcomm	sa8295p_firmware	—	cpe:2.3:o:qualcomm:sa8295p_firmware:-:::::::*
qualcomm	sa8650p_firmware	—	cpe:2.3:o:qualcomm:sa8650p_firmware:-:::::::*
qualcomm	sa8770p_firmware	—	cpe:2.3:o:qualcomm:sa8770p_firmware:-:::::::*
qualcomm	sa8775p_firmware	—	cpe:2.3:o:qualcomm:sa8775p_firmware:-:::::::*
qualcomm	sa9000p_firmware	—	cpe:2.3:o:qualcomm:sa9000p_firmware:-:::::::*
qualcomm	sd_8_gen1_5g_firmware	—	cpe:2.3:o:qualcomm:sd_8_gen1_5g_firmware:-:::::::*
qualcomm	sd660_firmware	—	cpe:2.3:o:qualcomm:sd660_firmware:-:::::::*
qualcomm	sd730_firmware	—	cpe:2.3:o:qualcomm:sd730_firmware:-:::::::*
qualcomm	sd835_firmware	—	cpe:2.3:o:qualcomm:sd835_firmware:-:::::::*
qualcomm	sd855_firmware	—	cpe:2.3:o:qualcomm:sd855_firmware:-:::::::*
qualcomm	sd865_5g_firmware	—	cpe:2.3:o:qualcomm:sd865_5g_firmware:-:::::::*
qualcomm	sd888_firmware	—	cpe:2.3:o:qualcomm:sd888_firmware:-:::::::*
qualcomm	sm6250_firmware	—	cpe:2.3:o:qualcomm:sm6250_firmware:-:::::::*
qualcomm	sm7250p_firmware	—	cpe:2.3:o:qualcomm:sm7250p_firmware:-:::::::*
qualcomm	sm7315_firmware	—	cpe:2.3:o:qualcomm:sm7315_firmware:-:::::::*
qualcomm	sm7325p_firmware	—	cpe:2.3:o:qualcomm:sm7325p_firmware:-:::::::*
qualcomm	snapdragon_4_gen_1_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_4_gen_1_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_4_gen_2_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_4_gen_2_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_460_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_460_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_480_5g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_480_5g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_480\+_5g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_480\+_5g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_660_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_660_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_662_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_662_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_665_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_665_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_675_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_675_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_678_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_678_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_680_4g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_680_4g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_685_4g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_685_4g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_690_5g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_690_5g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_695_5g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_695_5g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_720g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_720g_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_730_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_730_mobile_platform_firmware:-:::::::*
qualcomm	snapdragon_730g_mobile_platform_firmware	—	cpe:2.3:o:qualcomm:snapdragon_730g_mobile_platform_firmware:-:::::::*

References for CVE-2023-43519

URL	Tags
https://www.qualcomm.com/company/product-security/bulletins/february-2024-bulletin	Vendor Advisory

URL

CVE-2023-43519 | Buffer Copy without Checking Size of Input (`Classic Buffer Overflow`) in Video

Exploit prediction scoring system (EPSS) score for CVE-2023-43519

Common vulnerability scoring system (CVSS) metrics for CVE-2023-43519

Weakness enumeration for CVE-2023-43519

Affected software / configurations for CVE-2023-43519

References for CVE-2023-43519