CVE-2023-43511 [High] | Denial of Service in 315 5g Iot Modem Firmware

CVE-2023-43511 is rated Moderate Risk (49.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.33%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-07-17	0.43%	0.33%	-0.10%
2	2025-04-15	0.27%	0.43%	+0.16%
3	2025-03-17	—	0.27%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-07-17

0.43%

0.33%

-0.10%

2025-04-15

0.27%

0.43%

+0.16%

2025-03-17

—

0.27%

—

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]
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]

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-2023-43511

Vendor	Product	Version	Raw CPE
qualcomm	315_5g_iot_modem_firmware	—	cpe:2.3:o:qualcomm:315_5g_iot_modem_firmware:-:::::::*
qualcomm	9206_lte_modem_firmware	—	cpe:2.3:o:qualcomm:9206_lte_modem_firmware:-:::::::*
qualcomm	apq8017_firmware	—	cpe:2.3:o:qualcomm:apq8017_firmware:-:::::::*
qualcomm	apq8064au_firmware	—	cpe:2.3:o:qualcomm:apq8064au_firmware:-:::::::*
qualcomm	apq8092_firmware	—	cpe:2.3:o:qualcomm:apq8092_firmware:-:::::::*
qualcomm	apq8094_firmware	—	cpe:2.3:o:qualcomm:apq8094_firmware:-:::::::*
qualcomm	aqt1000_firmware	—	cpe:2.3:o:qualcomm:aqt1000_firmware:-:::::::*
qualcomm	ar8031_firmware	—	cpe:2.3:o:qualcomm:ar8031_firmware:-:::::::*
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	ar9380_firmware	—	cpe:2.3:o:qualcomm:ar9380_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	csrb31024_firmware	—	cpe:2.3:o:qualcomm:csrb31024_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	flight_rb5_5g_platform_firmware	—	cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:::::::*
qualcomm	home_hub_100_platform_firmware	—	cpe:2.3:o:qualcomm:home_hub_100_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	ipq4018_firmware	—	cpe:2.3:o:qualcomm:ipq4018_firmware:-:::::::*
qualcomm	ipq4028_firmware	—	cpe:2.3:o:qualcomm:ipq4028_firmware:-:::::::*
qualcomm	ipq4029_firmware	—	cpe:2.3:o:qualcomm:ipq4029_firmware:-:::::::*
qualcomm	ipq5010_firmware	—	cpe:2.3:o:qualcomm:ipq5010_firmware:-:::::::*
qualcomm	ipq5028_firmware	—	cpe:2.3:o:qualcomm:ipq5028_firmware:-:::::::*
qualcomm	ipq5332_firmware	—	cpe:2.3:o:qualcomm:ipq5332_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	ipq8064_firmware	—	cpe:2.3:o:qualcomm:ipq8064_firmware:-:::::::*
qualcomm	ipq8065_firmware	—	cpe:2.3:o:qualcomm:ipq8065_firmware:-:::::::*
qualcomm	ipq8068_firmware	—	cpe:2.3:o:qualcomm:ipq8068_firmware:-:::::::*
qualcomm	ipq8069_firmware	—	cpe:2.3:o:qualcomm:ipq8069_firmware:-:::::::*
qualcomm	ipq8070_firmware	—	cpe:2.3:o:qualcomm:ipq8070_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	ipq8074_firmware	—	cpe:2.3:o:qualcomm:ipq8074_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:-:::::::*
qualcomm	ipq9554_firmware	—	cpe:2.3:o:qualcomm:ipq9554_firmware:-:::::::*
qualcomm	ipq9570_firmware	—	cpe:2.3:o:qualcomm:ipq9570_firmware:-:::::::*
qualcomm	ipq9574_firmware	—	cpe:2.3:o:qualcomm:ipq9574_firmware:-:::::::*
qualcomm	mdm9250_firmware	—	cpe:2.3:o:qualcomm:mdm9250_firmware:-:::::::*
qualcomm	mdm9628_firmware	—	cpe:2.3:o:qualcomm:mdm9628_firmware:-:::::::*
qualcomm	mdm9640_firmware	—	cpe:2.3:o:qualcomm:mdm9640_firmware:-:::::::*
qualcomm	mdm9645_firmware	—	cpe:2.3:o:qualcomm:mdm9645_firmware:-:::::::*
qualcomm	mdm9650_firmware	—	cpe:2.3:o:qualcomm:mdm9650_firmware:-:::::::*
qualcomm	msm8996au_firmware	—	cpe:2.3:o:qualcomm:msm8996au_firmware:-:::::::*
qualcomm	pmp8074_firmware	—	cpe:2.3:o:qualcomm:pmp8074_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	qca0000_firmware	—	cpe:2.3:o:qualcomm:qca0000_firmware:-:::::::*
qualcomm	qca1023_firmware	—	cpe:2.3:o:qualcomm:qca1023_firmware:-:::::::*
qualcomm	qca1062_firmware	—	cpe:2.3:o:qualcomm:qca1062_firmware:-:::::::*
qualcomm	qca1064_firmware	—	cpe:2.3:o:qualcomm:qca1064_firmware:-:::::::*
qualcomm	qca1990_firmware	—	cpe:2.3:o:qualcomm:qca1990_firmware:-:::::::*
qualcomm	qca2062_firmware	—	cpe:2.3:o:qualcomm:qca2062_firmware:-:::::::*
qualcomm	qca2064_firmware	—	cpe:2.3:o:qualcomm:qca2064_firmware:-:::::::*
qualcomm	qca2065_firmware	—	cpe:2.3:o:qualcomm:qca2065_firmware:-:::::::*
qualcomm	qca2066_firmware	—	cpe:2.3:o:qualcomm:qca2066_firmware:-:::::::*
qualcomm	qca4024_firmware	—	cpe:2.3:o:qualcomm:qca4024_firmware:-:::::::*
qualcomm	qca4531_firmware	—	cpe:2.3:o:qualcomm:qca4531_firmware:-:::::::*
qualcomm	qca6174_firmware	—	cpe:2.3:o:qualcomm:qca6174_firmware:-:::::::*

References for CVE-2023-43511

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

URL

CVE-2023-43511 | Loop with Unreachable Exit Condition (Infinite Loop) in WLAN Firmware

Exploit prediction scoring system (EPSS) score for CVE-2023-43511

Common vulnerability scoring system (CVSS) metrics for CVE-2023-43511

Weakness enumeration for CVE-2023-43511

Affected software / configurations for CVE-2023-43511

References for CVE-2023-43511