CVE-2020-3639

u'When a non standard SIP sigcomp message is received from the network, then there may be chances of using more UDVM cycle or memory overflow' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8017, APQ8037, APQ8053, MDM9250, MDM9607, MDM9628, MDM9640, MDM9650, MSM8108, MSM8208, MSM8209, MSM8608, MSM8905, MSM8909, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, MSM8996AU, QCM4290, QCM6125, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QM215, QSM8350, SA415M, SA6145P, SA6150P, SA6155P, SA8150P, SA8155, SA8155P, SA8195P, SC7180, SC8180X, SC8180X+SDX55, SC8180XP, SDA429W, SDA640, SDA660, SDA670, SDA845, SDA855, SDM1000, SDM429, SDM429W, SDM439, SDM450, SDM455, SDM630, SDM632, SDM636, SDM640, SDM660, SDM670, SDM710, SDM712, SDM845, SDM850, SDX24, SDX50M, SDX55, SDX55M, SM4125, SM4250, SM4250P, SM6115, SM6115P, SM6125, SM6150, SM6150P, SM6250, SM6250P, SM7125, SM7150, SM7150P, SM7250, SM7250P, SM8150, SM8150P, SM8350, SM8350P, SXR1120, SXR1130

Published: 2020-11-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-3639 is rated Moderate Risk (58.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.90%). Review affected assets and schedule remediation.

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-2020-3639

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 0.33% 0.90% +0.57%
2 2025-03-30 0.78% 0.33% -0.45%
3 2025-03-29 — 0.78% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-3639

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: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.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2020-3639

Affected software / configurations for CVE-2020-3639

Vendor Product Version Raw CPE
qualcomm apq8009_firmware — cpe:2.3:o:qualcomm:apq8009_firmware:-:*:*:*:*:*:*:*
qualcomm apq8017_firmware — cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
qualcomm apq8037_firmware — cpe:2.3:o:qualcomm:apq8037_firmware:-:*:*:*:*:*:*:*
qualcomm apq8053_firmware — cpe:2.3:o:qualcomm:apq8053_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9250_firmware — cpe:2.3:o:qualcomm:mdm9250_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9607_firmware — cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9628_firmware — cpe:2.3:o:qualcomm:mdm9628_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9640_firmware — cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9650_firmware — cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
qualcomm msm8108_firmware — cpe:2.3:o:qualcomm:msm8108_firmware:-:*:*:*:*:*:*:*
qualcomm msm8208_firmware — cpe:2.3:o:qualcomm:msm8208_firmware:-:*:*:*:*:*:*:*
qualcomm msm8209_firmware — cpe:2.3:o:qualcomm:msm8209_firmware:-:*:*:*:*:*:*:*
qualcomm msm8608_firmware — cpe:2.3:o:qualcomm:msm8608_firmware:-:*:*:*:*:*:*:*
qualcomm msm8905_firmware — cpe:2.3:o:qualcomm:msm8905_firmware:-:*:*:*:*:*:*:*
qualcomm msm8909_firmware — cpe:2.3:o:qualcomm:msm8909_firmware:-:*:*:*:*:*:*:*
qualcomm msm8917_firmware — cpe:2.3:o:qualcomm:msm8917_firmware:-:*:*:*:*:*:*:*
qualcomm msm8920_firmware — cpe:2.3:o:qualcomm:msm8920_firmware:-:*:*:*:*:*:*:*
qualcomm msm8937_firmware — cpe:2.3:o:qualcomm:msm8937_firmware:-:*:*:*:*:*:*:*
qualcomm msm8940_firmware — cpe:2.3:o:qualcomm:msm8940_firmware:-:*:*:*:*:*:*:*
qualcomm msm8953_firmware — cpe:2.3:o:qualcomm:msm8953_firmware:-:*:*:*:*:*:*:*
qualcomm msm8996au_firmware — cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
qualcomm qcm4290_firmware — cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
qualcomm qcm6125_firmware — cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
qualcomm qcs410_firmware — cpe:2.3:o:qualcomm:qcs410_firmware:-:*:*:*:*:*:*:*
qualcomm qcs4290_firmware — cpe:2.3:o:qualcomm:qcs4290_firmware:-:*:*:*:*:*:*:*
qualcomm qcs603_firmware — cpe:2.3:o:qualcomm:qcs603_firmware:-:*:*:*:*:*:*:*
qualcomm qcs605_firmware — cpe:2.3:o:qualcomm:qcs605_firmware:-:*:*:*:*:*:*:*
qualcomm qcs610_firmware — cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*
qualcomm qcs6125_firmware — cpe:2.3:o:qualcomm:qcs6125_firmware:-:*:*:*:*:*:*:*
qualcomm qm215_firmware — cpe:2.3:o:qualcomm:qm215_firmware:-:*:*:*:*:*:*:*
qualcomm qsm8350_firmware — cpe:2.3:o:qualcomm:qsm8350_firmware:-:*:*:*:*:*:*:*
qualcomm sa415m_firmware — cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:*
qualcomm sa6145p_firmware — cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
qualcomm sa6150p_firmware — cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*
qualcomm sa6155p_firmware — cpe:2.3:o:qualcomm:sa6155p_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 sc7180_firmware — cpe:2.3:o:qualcomm:sc7180_firmware:-:*:*:*:*:*:*:*
qualcomm sc8180x_firmware — cpe:2.3:o:qualcomm:sc8180x_firmware:-:*:*:*:*:*:*:*
qualcomm sdx55_firmware — cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
qualcomm sc8180xp_firmware — cpe:2.3:o:qualcomm:sc8180xp_firmware:-:*:*:*:*:*:*:*
qualcomm sda429w_firmware — cpe:2.3:o:qualcomm:sda429w_firmware:-:*:*:*:*:*:*:*
qualcomm sda640_firmware — cpe:2.3:o:qualcomm:sda640_firmware:-:*:*:*:*:*:*:*
qualcomm sda660_firmware — cpe:2.3:o:qualcomm:sda660_firmware:-:*:*:*:*:*:*:*
qualcomm sda670_firmware — cpe:2.3:o:qualcomm:sda670_firmware:-:*:*:*:*:*:*:*
qualcomm sda845_firmware — cpe:2.3:o:qualcomm:sda845_firmware:-:*:*:*:*:*:*:*
qualcomm sda855_firmware — cpe:2.3:o:qualcomm:sda855_firmware:-:*:*:*:*:*:*:*
qualcomm sdm1000_firmware — cpe:2.3:o:qualcomm:sdm1000_firmware:-:*:*:*:*:*:*:*
qualcomm sdm429_firmware — cpe:2.3:o:qualcomm:sdm429_firmware:-:*:*:*:*:*:*:*
qualcomm sdm429w_firmware — cpe:2.3:o:qualcomm:sdm429w_firmware:-:*:*:*:*:*:*:*
qualcomm sdm439_firmware — cpe:2.3:o:qualcomm:sdm439_firmware:-:*:*:*:*:*:*:*
qualcomm sdm450_firmware — cpe:2.3:o:qualcomm:sdm450_firmware:-:*:*:*:*:*:*:*
qualcomm sdm455_firmware — cpe:2.3:o:qualcomm:sdm455_firmware:-:*:*:*:*:*:*:*
qualcomm sdm630_firmware — cpe:2.3:o:qualcomm:sdm630_firmware:-:*:*:*:*:*:*:*
qualcomm sdm632_firmware — cpe:2.3:o:qualcomm:sdm632_firmware:-:*:*:*:*:*:*:*
qualcomm sdm636_firmware — cpe:2.3:o:qualcomm:sdm636_firmware:-:*:*:*:*:*:*:*
qualcomm sdm640_firmware — cpe:2.3:o:qualcomm:sdm640_firmware:-:*:*:*:*:*:*:*
qualcomm sdm660_firmware — cpe:2.3:o:qualcomm:sdm660_firmware:-:*:*:*:*:*:*:*
qualcomm sdm670_firmware — cpe:2.3:o:qualcomm:sdm670_firmware:-:*:*:*:*:*:*:*
qualcomm sdm710_firmware — cpe:2.3:o:qualcomm:sdm710_firmware:-:*:*:*:*:*:*:*
qualcomm sdm712_firmware — cpe:2.3:o:qualcomm:sdm712_firmware:-:*:*:*:*:*:*:*
qualcomm sdm845_firmware — cpe:2.3:o:qualcomm:sdm845_firmware:-:*:*:*:*:*:*:*
qualcomm sdm850_firmware — cpe:2.3:o:qualcomm:sdm850_firmware:-:*:*:*:*:*:*:*
qualcomm sdx24_firmware — cpe:2.3:o:qualcomm:sdx24_firmware:-:*:*:*:*:*:*:*
qualcomm sdx50m_firmware — cpe:2.3:o:qualcomm:sdx50m_firmware:-:*:*:*:*:*:*:*
qualcomm sdx55m_firmware — cpe:2.3:o:qualcomm:sdx55m_firmware:-:*:*:*:*:*:*:*
qualcomm sm4125_firmware — cpe:2.3:o:qualcomm:sm4125_firmware:-:*:*:*:*:*:*:*
qualcomm sm4250_firmware — cpe:2.3:o:qualcomm:sm4250_firmware:-:*:*:*:*:*:*:*
qualcomm sm4250p_firmware — cpe:2.3:o:qualcomm:sm4250p_firmware:-:*:*:*:*:*:*:*
qualcomm sm6115_firmware — cpe:2.3:o:qualcomm:sm6115_firmware:-:*:*:*:*:*:*:*
qualcomm sm6115p_firmware — cpe:2.3:o:qualcomm:sm6115p_firmware:-:*:*:*:*:*:*:*
qualcomm sm6125_firmware — cpe:2.3:o:qualcomm:sm6125_firmware:-:*:*:*:*:*:*:*
qualcomm sm6150_firmware — cpe:2.3:o:qualcomm:sm6150_firmware:-:*:*:*:*:*:*:*
qualcomm sm6150p_firmware — cpe:2.3:o:qualcomm:sm6150p_firmware:-:*:*:*:*:*:*:*
qualcomm sm6250_firmware — cpe:2.3:o:qualcomm:sm6250_firmware:-:*:*:*:*:*:*:*
qualcomm sm6250p_firmware — cpe:2.3:o:qualcomm:sm6250p_firmware:-:*:*:*:*:*:*:*
qualcomm sm7125_firmware — cpe:2.3:o:qualcomm:sm7125_firmware:-:*:*:*:*:*:*:*
qualcomm sm7150_firmware — cpe:2.3:o:qualcomm:sm7150_firmware:-:*:*:*:*:*:*:*

References for CVE-2020-3639

cvelogic Threat Intelligence