CVE-2020-3656

highpriority · track · 31EPSS 0.002 · 13 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (13th) EPSS

CVSS 7.2 · high

Is it mine?

29 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

Out of bound access can happen in MHI command process due to lack of check of command channel id value received from MHI devices in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, Kamorta, MDM9607, MSM8917, MSM8953, Nicobar, QCM2150, QCS405, QCS605, QM215, Rennell, SA6155P, SA8155P, Saipan, SC8180X, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM710, SDM845, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimary

affected products (29)

Products and version ranges known to be affected.

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables≤ APQ8009, Kamorta, MDM9607, MSM8917, MSM8953, Nicobar, QCM2150, QCS405, QCS605, QM215, Rennell, SA6155P, SA8155P, Saipan, SC8180X, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM710, SDM845, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130enisa_euvdEU
qualcomm apq8009 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8009_firmware:*:*:*:*:*:*:*:*
qualcomm kamorta firmwareall versionsnvdUScpe:2.3:o:qualcomm:kamorta_firmware:*:*:*:*:*:*:*:*
qualcomm mdm9607 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm9607_firmware:*:*:*:*:*:*:*:*
qualcomm msm8917 firmwareall versionsnvdUScpe:2.3:o:qualcomm:msm8917_firmware:*:*:*:*:*:*:*:*
qualcomm msm8953 firmwareall versionsnvdUScpe:2.3:o:qualcomm:msm8953_firmware:*:*:*:*:*:*:*:*
qualcomm nicobar firmwareall versionsnvdUScpe:2.3:o:qualcomm:nicobar_firmware:*:*:*:*:*:*:*:*
qualcomm qcm2150 firmwareall versionsnvdUScpe:2.3:o:qualcomm:qcm2150_firmware:*:*:*:*:*:*:*:*
qualcomm qcs405 firmwareall versionsnvdUScpe:2.3:o:qualcomm:qcs405_firmware:*:*:*:*:*:*:*:*
qualcomm qcs605 firmwareall versionsnvdUScpe:2.3:o:qualcomm:qcs605_firmware:*:*:*:*:*:*:*:*
qualcomm qm215 firmwareall versionsnvdUScpe:2.3:o:qualcomm:qm215_firmware:*:*:*:*:*:*:*:*
qualcomm rennell firmwareall versionsnvdUScpe:2.3:o:qualcomm:rennell_firmware:*:*:*:*:*:*:*:*
qualcomm sa6155p firmwareall versionsnvdUScpe:2.3:o:qualcomm:sa6155p_firmware:*:*:*:*:*:*:*:*
qualcomm sa8155p firmwareall versionsnvdUScpe:2.3:o:qualcomm:sa8155p_firmware:*:*:*:*:*:*:*:*
qualcomm saipan firmwareall versionsnvdUScpe:2.3:o:qualcomm:saipan_firmware:*:*:*:*:*:*:*:*
qualcomm sc8180x firmwareall versionsnvdUScpe:2.3:o:qualcomm:sc8180x_firmware:*:*:*:*:*:*:*:*
qualcomm sdm429 firmwareall versionsnvdUScpe:2.3:o:qualcomm:sdm429_firmware:*:*:*:*:*:*:*:*
qualcomm sdm429w firmwareall versionsnvdUScpe:2.3:o:qualcomm:sdm429w_firmware:*:*:*:*:*:*:*:*
qualcomm sdm439 firmwareall versionsnvdUScpe:2.3:o:qualcomm:sdm439_firmware:*:*:*:*:*:*:*:*
qualcomm sdm450 firmwareall versionsnvdUScpe:2.3:o:qualcomm:sdm450_firmware:*:*:*:*:*:*:*:*

showing 20 of 29

advisories (1)

Vendor and ecosystem advisories describing this.

ASB-A-1579057802020-09-01vendor · osvUS

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-09-09modified 2026-06-17

related (5,669)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2025-43520US	medium5.5OT critical	0.43% (37th)	KEV	2025-12-12
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS So…
CVE-2025-20333US	—OT critical	71.2% (99th)	KEV	2025-09-25
A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an aut…
CVE-2025-39682US	critical9.8OT critical	3.25% (88th)	KEV	2025-09-05
In the Linux kernel, the following vulnerability has been resolved: tls: fix handling of zero-length records on the rx_list Each recvmsg() call must process either - only contig…
CVE-2025-31277US	—OT critical	1.66% (77th)	KEV	2025-07-30
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Proc…
CVE-2025-24985US	—OT critical	3.89% (90th)	KEV	2025-03-11
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.

+5664 more

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan