CVE-2020-11308

Buffer overflow occurs when trying to convert ASCII string to Unicode string if the actual size is more than required in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Published: 2021-03-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-11308 is rated Low Risk (31.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-11308

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.04% 0.22% +0.19%
2 2025-03-30 0.07% 0.04% -0.04%
3 2025-03-29 — 0.07% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-11308

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.1 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
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.
 0.9 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2020-11308

Affected software / configurations for CVE-2020-11308

Vendor Product Version Raw CPE
qualcomm apq8009_firmware — cpe:2.3:o:qualcomm:apq8009_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 ar8151_firmware — cpe:2.3:o:qualcomm:ar8151_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 fsm10055_firmware — cpe:2.3:o:qualcomm:fsm10055_firmware:-:*:*:*:*:*:*:*
qualcomm fsm10056_firmware — cpe:2.3:o:qualcomm:fsm10056_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9250_firmware — cpe:2.3:o:qualcomm:mdm9250_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9655_firmware — cpe:2.3:o:qualcomm:mdm9655_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 pm6350_firmware — cpe:2.3:o:qualcomm:pm6350_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 pm660a_firmware — cpe:2.3:o:qualcomm:pm660a_firmware:-:*:*:*:*:*:*:*
qualcomm pm660l_firmware — cpe:2.3:o:qualcomm:pm660l_firmware:-:*:*:*:*:*:*:*
qualcomm pm670_firmware — cpe:2.3:o:qualcomm:pm670_firmware:-:*:*:*:*:*:*:*
qualcomm pm670a_firmware — cpe:2.3:o:qualcomm:pm670a_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 pm7350c_firmware — cpe:2.3:o:qualcomm:pm7350c_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 pm8350_firmware — cpe:2.3:o:qualcomm:pm8350_firmware:-:*:*:*:*:*:*:*
qualcomm pm8350b_firmware — cpe:2.3:o:qualcomm:pm8350b_firmware:-:*:*:*:*:*:*:*
qualcomm pm8350bh_firmware — cpe:2.3:o:qualcomm:pm8350bh_firmware:-:*:*:*:*:*:*:*
qualcomm pm8350bhs_firmware — cpe:2.3:o:qualcomm:pm8350bhs_firmware:-:*:*:*:*:*:*:*
qualcomm pm8350c_firmware — cpe:2.3:o:qualcomm:pm8350c_firmware:-:*:*:*:*:*:*:*
qualcomm pm855_firmware — cpe:2.3:o:qualcomm:pm855_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 pm8916_firmware — cpe:2.3:o:qualcomm:pm8916_firmware:-:*:*:*:*:*:*:*
qualcomm pm8998_firmware — cpe:2.3:o:qualcomm:pm8998_firmware:-:*:*:*:*:*:*:*
qualcomm pmc1000h_firmware — cpe:2.3:o:qualcomm:pmc1000h_firmware:-:*:*:*:*:*:*:*
qualcomm pmd9655_firmware — cpe:2.3:o:qualcomm:pmd9655_firmware:-:*:*:*:*:*:*:*
qualcomm pme605_firmware — cpe:2.3:o:qualcomm:pme605_firmware:-:*:*:*:*:*:*:*
qualcomm pmi632_firmware — cpe:2.3:o:qualcomm:pmi632_firmware:-:*:*:*:*:*:*:*
qualcomm pmi8998_firmware — cpe:2.3:o:qualcomm:pmi8998_firmware:-:*:*:*:*:*:*:*
qualcomm pmk7350_firmware — cpe:2.3:o:qualcomm:pmk7350_firmware:-:*:*:*:*:*:*:*
qualcomm pmk8002_firmware — cpe:2.3:o:qualcomm:pmk8002_firmware:-:*:*:*:*:*:*:*
qualcomm pmk8003_firmware — cpe:2.3:o:qualcomm:pmk8003_firmware:-:*:*:*:*:*:*:*
qualcomm pmk8350_firmware — cpe:2.3:o:qualcomm:pmk8350_firmware:-:*:*:*:*:*:*:*
qualcomm pmm6155au_firmware — cpe:2.3:o:qualcomm:pmm6155au_firmware:-:*:*:*:*:*:*:*
qualcomm pmm8155au_firmware — cpe:2.3:o:qualcomm:pmm8155au_firmware:-:*:*:*:*:*:*:*
qualcomm pmm8195au_firmware — cpe:2.3:o:qualcomm:pmm8195au_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 pmr735b_firmware — cpe:2.3:o:qualcomm:pmr735b_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 qat3514_firmware — cpe:2.3:o:qualcomm:qat3514_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:-:*:*:*:*:*:*:*

References for CVE-2020-11308

cvelogic Threat Intelligence