CVE-2020-11222 [Critical] | Out-of-bounds Read in Apq8017 Firmware

Buffer over read while processing MT SMS with maximum length due to improper length check in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.29%	0.92%	+0.63%
2	2025-03-30	0.56%	0.29%	-0.27%
3	2025-03-29	—	0.56%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.29%

0.92%

+0.63%

2025-03-30

0.56%

0.29%

-0.27%

2025-03-29

—

0.56%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.1	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:H) Serious risk that confidential data gets exposed in a big 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	5.2	[email protected]
6.4	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:P/I:N/A:P` 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:P) Partial availability impact.	10.0	4.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.1

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:H): Serious risk that confidential data gets exposed in a big 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

5.2

[email protected]

6.4

2.0

MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:P 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:P): Partial availability impact.

10.0

4.9

[email protected]

Affected software / configurations for CVE-2020-11222

Vendor	Product	Version	Raw CPE
qualcomm	apq8017_firmware	—	cpe:2.3:o:qualcomm:apq8017_firmware:-:::::::*
qualcomm	apq8053_firmware	—	cpe:2.3:o:qualcomm:apq8053_firmware:-:::::::*
qualcomm	aqt1000_firmware	—	cpe:2.3:o:qualcomm:aqt1000_firmware:-:::::::*
qualcomm	ar8035_firmware	—	cpe:2.3:o:qualcomm:ar8035_firmware:-:::::::*
qualcomm	csrb31024_firmware	—	cpe:2.3:o:qualcomm:csrb31024_firmware:-:::::::*
qualcomm	fsm10055_firmware	—	cpe:2.3:o:qualcomm:fsm10055_firmware:-:::::::*
qualcomm	msm8917_firmware	—	cpe:2.3:o:qualcomm:msm8917_firmware:-:::::::*
qualcomm	msm8920_firmware	—	cpe:2.3:o:qualcomm:msm8920_firmware:-:::::::*
qualcomm	msm8940_firmware	—	cpe:2.3:o:qualcomm:msm8940_firmware:-:::::::*
qualcomm	msm8953_firmware	—	cpe:2.3:o:qualcomm:msm8953_firmware:-:::::::*
qualcomm	pm3003a_firmware	—	cpe:2.3:o:qualcomm:pm3003a_firmware:-:::::::*
qualcomm	pm4125_firmware	—	cpe:2.3:o:qualcomm:pm4125_firmware:-:::::::*
qualcomm	pm4250_firmware	—	cpe:2.3:o:qualcomm:pm4250_firmware:-:::::::*
qualcomm	pm456_firmware	—	cpe:2.3:o:qualcomm:pm456_firmware:-:::::::*
qualcomm	pm6125_firmware	—	cpe:2.3:o:qualcomm:pm6125_firmware:-:::::::*
qualcomm	pm6150_firmware	—	cpe:2.3:o:qualcomm:pm6150_firmware:-:::::::*
qualcomm	pm6150a_firmware	—	cpe:2.3:o:qualcomm:pm6150a_firmware:-:::::::*
qualcomm	pm6150l_firmware	—	cpe:2.3:o:qualcomm:pm6150l_firmware:-:::::::*
qualcomm	pm6250_firmware	—	cpe:2.3:o:qualcomm:pm6250_firmware:-:::::::*
qualcomm	pm640a_firmware	—	cpe:2.3:o:qualcomm:pm640a_firmware:-:::::::*
qualcomm	pm640l_firmware	—	cpe:2.3:o:qualcomm:pm640l_firmware:-:::::::*
qualcomm	pm640p_firmware	—	cpe:2.3:o:qualcomm:pm640p_firmware:-:::::::*
qualcomm	pm660_firmware	—	cpe:2.3:o:qualcomm:pm660_firmware:-:::::::*
qualcomm	pm660l_firmware	—	cpe:2.3:o:qualcomm:pm660l_firmware:-:::::::*
qualcomm	pm670_firmware	—	cpe:2.3:o:qualcomm:pm670_firmware:-:::::::*
qualcomm	pm670l_firmware	—	cpe:2.3:o:qualcomm:pm670l_firmware:-:::::::*
qualcomm	pm7150a_firmware	—	cpe:2.3:o:qualcomm:pm7150a_firmware:-:::::::*
qualcomm	pm7150l_firmware	—	cpe:2.3:o:qualcomm:pm7150l_firmware:-:::::::*
qualcomm	pm7250_firmware	—	cpe:2.3:o:qualcomm:pm7250_firmware:-:::::::*
qualcomm	pm7250b_firmware	—	cpe:2.3:o:qualcomm:pm7250b_firmware:-:::::::*
qualcomm	pm8004_firmware	—	cpe:2.3:o:qualcomm:pm8004_firmware:-:::::::*
qualcomm	pm8005_firmware	—	cpe:2.3:o:qualcomm:pm8005_firmware:-:::::::*
qualcomm	pm8008_firmware	—	cpe:2.3:o:qualcomm:pm8008_firmware:-:::::::*
qualcomm	pm8009_firmware	—	cpe:2.3:o:qualcomm:pm8009_firmware:-:::::::*
qualcomm	pm8150_firmware	—	cpe:2.3:o:qualcomm:pm8150_firmware:-:::::::*
qualcomm	pm8150a_firmware	—	cpe:2.3:o:qualcomm:pm8150a_firmware:-:::::::*
qualcomm	pm8150b_firmware	—	cpe:2.3:o:qualcomm:pm8150b_firmware:-:::::::*
qualcomm	pm8150c_firmware	—	cpe:2.3:o:qualcomm:pm8150c_firmware:-:::::::*
qualcomm	pm8150l_firmware	—	cpe:2.3:o:qualcomm:pm8150l_firmware:-:::::::*
qualcomm	pm8250_firmware	—	cpe:2.3:o:qualcomm:pm8250_firmware:-:::::::*
qualcomm	pm855_firmware	—	cpe:2.3:o:qualcomm:pm855_firmware:-:::::::*
qualcomm	pm855a_firmware	—	cpe:2.3:o:qualcomm:pm855a_firmware:-:::::::*
qualcomm	pm855b_firmware	—	cpe:2.3:o:qualcomm:pm855b_firmware:-:::::::*
qualcomm	pm855l_firmware	—	cpe:2.3:o:qualcomm:pm855l_firmware:-:::::::*
qualcomm	pm855p_firmware	—	cpe:2.3:o:qualcomm:pm855p_firmware:-:::::::*
qualcomm	pm8937_firmware	—	cpe:2.3:o:qualcomm:pm8937_firmware:-:::::::*
qualcomm	pm8940_firmware	—	cpe:2.3:o:qualcomm:pm8940_firmware:-:::::::*
qualcomm	pm8953_firmware	—	cpe:2.3:o:qualcomm:pm8953_firmware:-:::::::*
qualcomm	pm8998_firmware	—	cpe:2.3:o:qualcomm:pm8998_firmware:-:::::::*
qualcomm	pmc1000h_firmware	—	cpe:2.3:o:qualcomm:pmc1000h_firmware:-:::::::*
qualcomm	pme605_firmware	—	cpe:2.3:o:qualcomm:pme605_firmware:-:::::::*
qualcomm	pmi632_firmware	—	cpe:2.3:o:qualcomm:pmi632_firmware:-:::::::*
qualcomm	pmi8937_firmware	—	cpe:2.3:o:qualcomm:pmi8937_firmware:-:::::::*
qualcomm	pmi8952_firmware	—	cpe:2.3:o:qualcomm:pmi8952_firmware:-:::::::*
qualcomm	pmi8998_firmware	—	cpe:2.3:o:qualcomm:pmi8998_firmware:-:::::::*
qualcomm	pmk8002_firmware	—	cpe:2.3:o:qualcomm:pmk8002_firmware:-:::::::*
qualcomm	pmm855au_firmware	—	cpe:2.3:o:qualcomm:pmm855au_firmware:-:::::::*
qualcomm	pmr525_firmware	—	cpe:2.3:o:qualcomm:pmr525_firmware:-:::::::*
qualcomm	pmr735a_firmware	—	cpe:2.3:o:qualcomm:pmr735a_firmware:-:::::::*
qualcomm	pmx24_firmware	—	cpe:2.3:o:qualcomm:pmx24_firmware:-:::::::*
qualcomm	pmx50_firmware	—	cpe:2.3:o:qualcomm:pmx50_firmware:-:::::::*
qualcomm	pmx55_firmware	—	cpe:2.3:o:qualcomm:pmx55_firmware:-:::::::*
qualcomm	qat3516_firmware	—	cpe:2.3:o:qualcomm:qat3516_firmware:-:::::::*
qualcomm	qat3518_firmware	—	cpe:2.3:o:qualcomm:qat3518_firmware:-:::::::*
qualcomm	qat3519_firmware	—	cpe:2.3:o:qualcomm:qat3519_firmware:-:::::::*
qualcomm	qat3522_firmware	—	cpe:2.3:o:qualcomm:qat3522_firmware:-:::::::*
qualcomm	qat3550_firmware	—	cpe:2.3:o:qualcomm:qat3550_firmware:-:::::::*
qualcomm	qat3555_firmware	—	cpe:2.3:o:qualcomm:qat3555_firmware:-:::::::*
qualcomm	qat5515_firmware	—	cpe:2.3:o:qualcomm:qat5515_firmware:-:::::::*
qualcomm	qat5516_firmware	—	cpe:2.3:o:qualcomm:qat5516_firmware:-:::::::*
qualcomm	qat5522_firmware	—	cpe:2.3:o:qualcomm:qat5522_firmware:-:::::::*
qualcomm	qat5533_firmware	—	cpe:2.3:o:qualcomm:qat5533_firmware:-:::::::*
qualcomm	qbt1500_firmware	—	cpe:2.3:o:qualcomm:qbt1500_firmware:-:::::::*
qualcomm	qbt2000_firmware	—	cpe:2.3:o:qualcomm:qbt2000_firmware:-:::::::*
qualcomm	qca6174a_firmware	—	cpe:2.3:o:qualcomm:qca6174a_firmware:-:::::::*
qualcomm	qca6390_firmware	—	cpe:2.3:o:qualcomm:qca6390_firmware:-:::::::*
qualcomm	qca6391_firmware	—	cpe:2.3:o:qualcomm:qca6391_firmware:-:::::::*
qualcomm	qca6420_firmware	—	cpe:2.3:o:qualcomm:qca6420_firmware:-:::::::*
qualcomm	qca6421_firmware	—	cpe:2.3:o:qualcomm:qca6421_firmware:-:::::::*
qualcomm	qca6426_firmware	—	cpe:2.3:o:qualcomm:qca6426_firmware:-:::::::*

References for CVE-2020-11222

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

URL

CVE-2020-11222

Exploit prediction scoring system (EPSS) score for CVE-2020-11222

Common vulnerability scoring system (CVSS) metrics for CVE-2020-11222

Weakness enumeration for CVE-2020-11222

Affected software / configurations for CVE-2020-11222

References for CVE-2020-11222