CVE-2020-11303 [High] | Information Disclosure in Apq8009 Firmware

Accepting AMSDU frames with mismatched destination and source address can lead to information disclosure in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.24%	0.66%	+0.42%
2	2025-03-30	0.47%	0.24%	-0.23%
3	2025-03-29	—	0.47%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.24%

0.66%

+0.42%

2025-03-30

0.47%

0.24%

-0.23%

2025-03-29

—

0.47%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.6	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. 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	4.0	[email protected]
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:P/I:N/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:N) No availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.6

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
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

4.0

[email protected]

5.0

2.0

MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:N): No availability impact.

10.0

2.9

[email protected]

Affected software / configurations for CVE-2020-11303

Vendor	Product	Version	Raw CPE
qualcomm	apq8009_firmware	—	cpe:2.3:o:qualcomm:apq8009_firmware:-:::::::*
qualcomm	apq8053_firmware	—	cpe:2.3:o:qualcomm:apq8053_firmware:-:::::::*
qualcomm	apq8064au_firmware	—	cpe:2.3:o:qualcomm:apq8064au_firmware:-:::::::*
qualcomm	apq8076_firmware	—	cpe:2.3:o:qualcomm:apq8076_firmware:-:::::::*
qualcomm	apq8092_firmware	—	cpe:2.3:o:qualcomm:apq8092_firmware:-:::::::*
qualcomm	apq8094_firmware	—	cpe:2.3:o:qualcomm:apq8094_firmware:-:::::::*
qualcomm	apq8096au_firmware	—	cpe:2.3:o:qualcomm:apq8096au_firmware:-:::::::*
qualcomm	ar8031_firmware	—	cpe:2.3:o:qualcomm:ar8031_firmware:-:::::::*
qualcomm	csr6030_firmware	—	cpe:2.3:o:qualcomm:csr6030_firmware:-:::::::*
qualcomm	csra6620_firmware	—	cpe:2.3:o:qualcomm:csra6620_firmware:-:::::::*
qualcomm	csra6640_firmware	—	cpe:2.3:o:qualcomm:csra6640_firmware:-:::::::*
qualcomm	mdm8215_firmware	—	cpe:2.3:o:qualcomm:mdm8215_firmware:-:::::::*
qualcomm	mdm9206_firmware	—	cpe:2.3:o:qualcomm:mdm9206_firmware:-:::::::*
qualcomm	mdm9215_firmware	—	cpe:2.3:o:qualcomm:mdm9215_firmware:-:::::::*
qualcomm	mdm9250_firmware	—	cpe:2.3:o:qualcomm:mdm9250_firmware:-:::::::*
qualcomm	mdm9310_firmware	—	cpe:2.3:o:qualcomm:mdm9310_firmware:-:::::::*
qualcomm	mdm9607_firmware	—	cpe:2.3:o:qualcomm:mdm9607_firmware:-:::::::*
qualcomm	mdm9615_firmware	—	cpe:2.3:o:qualcomm:mdm9615_firmware:-:::::::*
qualcomm	mdm9626_firmware	—	cpe:2.3:o:qualcomm:mdm9626_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	mdm9655_firmware	—	cpe:2.3:o:qualcomm:mdm9655_firmware:-:::::::*
qualcomm	msm8976_firmware	—	cpe:2.3:o:qualcomm:msm8976_firmware:-:::::::*
qualcomm	msm8992_firmware	—	cpe:2.3:o:qualcomm:msm8992_firmware:-:::::::*
qualcomm	msm8994_firmware	—	cpe:2.3:o:qualcomm:msm8994_firmware:-:::::::*
qualcomm	msm8996au_firmware	—	cpe:2.3:o:qualcomm:msm8996au_firmware:-:::::::*
qualcomm	qca0000_firmware	—	cpe:2.3:o:qualcomm:qca0000_firmware:-:::::::*
qualcomm	qca1023_firmware	—	cpe:2.3:o:qualcomm:qca1023_firmware:-:::::::*
qualcomm	qca1990_firmware	—	cpe:2.3:o:qualcomm:qca1990_firmware:-:::::::*
qualcomm	qca4020_firmware	—	cpe:2.3:o:qualcomm:qca4020_firmware:-:::::::*
qualcomm	qca6174_firmware	—	cpe:2.3:o:qualcomm:qca6174_firmware:-:::::::*
qualcomm	qca6174a_firmware	—	cpe:2.3:o:qualcomm:qca6174a_firmware:-:::::::*
qualcomm	qca6175a_firmware	—	cpe:2.3:o:qualcomm:qca6175a_firmware:-:::::::*
qualcomm	qca6234_firmware	—	cpe:2.3:o:qualcomm:qca6234_firmware:-:::::::*
qualcomm	qca6310_firmware	—	cpe:2.3:o:qualcomm:qca6310_firmware:-:::::::*
qualcomm	qca6320_firmware	—	cpe:2.3:o:qualcomm:qca6320_firmware:-:::::::*
qualcomm	qca6564_firmware	—	cpe:2.3:o:qualcomm:qca6564_firmware:-:::::::*
qualcomm	qca6564a_firmware	—	cpe:2.3:o:qualcomm:qca6564a_firmware:-:::::::*
qualcomm	qca6564au_firmware	—	cpe:2.3:o:qualcomm:qca6564au_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	qca6584_firmware	—	cpe:2.3:o:qualcomm:qca6584_firmware:-:::::::*
qualcomm	qca6584au_firmware	—	cpe:2.3:o:qualcomm:qca6584au_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	qca9367_firmware	—	cpe:2.3:o:qualcomm:qca9367_firmware:-:::::::*
qualcomm	qca9369_firmware	—	cpe:2.3:o:qualcomm:qca9369_firmware:-:::::::*
qualcomm	qca9377_firmware	—	cpe:2.3:o:qualcomm:qca9377_firmware:-:::::::*
qualcomm	qca9378a_firmware	—	cpe:2.3:o:qualcomm:qca9378a_firmware:-:::::::*
qualcomm	qca9379_firmware	—	cpe:2.3:o:qualcomm:qca9379_firmware:-:::::::*
qualcomm	qca9886_firmware	—	cpe:2.3:o:qualcomm:qca9886_firmware:-:::::::*
qualcomm	qcs405_firmware	—	cpe:2.3:o:qualcomm:qcs405_firmware:-:::::::*
qualcomm	sa515m_firmware	—	cpe:2.3:o:qualcomm:sa515m_firmware:-:::::::*
qualcomm	sa6145p_firmware	—	cpe:2.3:o:qualcomm:sa6145p_firmware:-:::::::*
qualcomm	sa6150p_firmware	—	cpe:2.3:o:qualcomm:sa6150p_firmware:-:::::::*
qualcomm	sa6155_firmware	—	cpe:2.3:o:qualcomm:sa6155_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	sa8155_firmware	—	cpe:2.3:o:qualcomm:sa8155_firmware:-:::::::*
qualcomm	sa8155p_firmware	—	cpe:2.3:o:qualcomm:sa8155p_firmware:-:::::::*
qualcomm	sa8195p_firmware	—	cpe:2.3:o:qualcomm:sa8195p_firmware:-:::::::*
qualcomm	sd210_firmware	—	cpe:2.3:o:qualcomm:sd210_firmware:-:::::::*
qualcomm	sd820_firmware	—	cpe:2.3:o:qualcomm:sd820_firmware:-:::::::*
qualcomm	sd821_firmware	—	cpe:2.3:o:qualcomm:sd821_firmware:-:::::::*
qualcomm	sd845_firmware	—	cpe:2.3:o:qualcomm:sd845_firmware:-:::::::*
qualcomm	sdx12_firmware	—	cpe:2.3:o:qualcomm:sdx12_firmware:-:::::::*
qualcomm	sdx20_firmware	—	cpe:2.3:o:qualcomm:sdx20_firmware:-:::::::*
qualcomm	sdx20m_firmware	—	cpe:2.3:o:qualcomm:sdx20m_firmware:-:::::::*
qualcomm	sdx24_firmware	—	cpe:2.3:o:qualcomm:sdx24_firmware:-:::::::*
qualcomm	sdx55_firmware	—	cpe:2.3:o:qualcomm:sdx55_firmware:-:::::::*
qualcomm	wcd9326_firmware	—	cpe:2.3:o:qualcomm:wcd9326_firmware:-:::::::*
qualcomm	wcd9330_firmware	—	cpe:2.3:o:qualcomm:wcd9330_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:-:::::::*

References for CVE-2020-11303

URL	Tags
https://www.qualcomm.com/company/product-security/bulletins/october-2021-bulletin	Vendor Advisory

URL

CVE-2020-11303

Exploit prediction scoring system (EPSS) score for CVE-2020-11303

Common vulnerability scoring system (CVSS) metrics for CVE-2020-11303

Weakness enumeration for CVE-2020-11303

Affected software / configurations for CVE-2020-11303

References for CVE-2020-11303