CVE-2021-1920

highpriority · track · 39EPSS 0.008 · 56 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.80% (56th) EPSS

CVSS 10 · high

Is it mine?

172 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Integer underflow can occur due to improper handling of incoming RTCP packets in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables

cvss

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

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · product-security@qualcomm.comexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/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-191USprimary

affected products (172)

Products and version ranges known to be affected.

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables≤ APQ8009, APQ8009W, APQ8017, APQ8037, APQ8084, APQ8096AU, AQT1000, AR6003, CSR6030, CSRB31024, MDM8207, MDM8215, MDM8215M, MDM8615M, MDM9150, MDM9205, MDM9206, MDM9207, MDM9215, MDM9230, MDM9250, MDM9310, MDM9330, MDM9607, MDM9615, MDM9615M, MDM9625, MDM9628, MDM9630, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8108, MSM8208, MSM8209, MSM8608, MSM8909W, MSM8917, MSM8920, MSM8937, MSM8940, MSM8976, MSM8976SG, MSM8996AU, QCA1990, QCA4004, QCA6174, QCA6174A, QCA6310, QCA6320, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595AU, QCA6694, QCA6694AU, QCA6696, QCA9367, QCA9377, QCA9379, QCM4290, QCM6125, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QCX315, QSW8573, Qualcomm215, SA415M, SA515M, SA8155, SA8155P, SC8180X+SDX55, SD 455, SD 636, SD 675, SD 8C, SD 8CX, SD205, SD210, SD429, SD439, SD450, SD480, SD632, SD665, SD670, SD675, SD678, SD690 5G, SD712, SD720G, SD730, SD750G, SD765 ...[truncated*]enisa_euvdEU
qualcomm apq8009 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8009_firmware:*:*:*:*:*:*:*:*
qualcomm apq8009w firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8009w_firmware:*:*:*:*:*:*:*:*
qualcomm apq8017 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8017_firmware:*:*:*:*:*:*:*:*
qualcomm apq8037 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8037_firmware:*:*:*:*:*:*:*:*
qualcomm apq8053 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8053_firmware:*:*:*:*:*:*:*:*
qualcomm apq8084 firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8084_firmware:*:*:*:*:*:*:*:*
qualcomm apq8096au firmwareall versionsnvdUScpe:2.3:o:qualcomm:apq8096au_firmware:*:*:*:*:*:*:*:*
qualcomm aqt1000 firmwareall versionsnvdUScpe:2.3:o:qualcomm:aqt1000_firmware:*:*:*:*:*:*:*:*
qualcomm ar6003 firmwareall versionsnvdUScpe:2.3:o:qualcomm:ar6003_firmware:*:*:*:*:*:*:*:*
qualcomm csr6030 firmwareall versionsnvdUScpe:2.3:o:qualcomm:csr6030_firmware:*:*:*:*:*:*:*:*
qualcomm csrb31024 firmwareall versionsnvdUScpe:2.3:o:qualcomm:csrb31024_firmware:*:*:*:*:*:*:*:*
qualcomm mdm8207 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm8207_firmware:*:*:*:*:*:*:*:*
qualcomm mdm8215 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm8215_firmware:*:*:*:*:*:*:*:*
qualcomm mdm8215m firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm8215m_firmware:*:*:*:*:*:*:*:*
qualcomm mdm8615m firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm8615m_firmware:*:*:*:*:*:*:*:*
qualcomm mdm9150 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm9150_firmware:*:*:*:*:*:*:*:*
qualcomm mdm9205 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm9205_firmware:*:*:*:*:*:*:*:*
qualcomm mdm9206 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm9206_firmware:*:*:*:*:*:*:*:*
qualcomm mdm9207 firmwareall versionsnvdUScpe:2.3:o:qualcomm:mdm9207_firmware:*:*:*:*:*:*:*:*

showing 20 of 172

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-09-08modified 2026-06-17

related (720)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2022-0185US	high8.4OT critical	25.2% (98th)	KEV	2022-02-11
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters…
CVE-2021-31956US	high9.3OT critical	22.3% (98th)	KEV	2021-06-08
Windows NTFS Elevation of Privilege Vulnerability
CVE-2014-0497US	critical9.8OT critical	99.9% (100th)	KEV	2014-02-05
Integer underflow in Adobe Flash Player before 11.7.700.261 and 11.8.x through 12.0.x before 12.0.0.44 on Windows and Mac OS X, and before 11.2.202.336 on Linux, allows remote atta…
CVE-2019-12255US	critical9.8	75.3% (100th)	Exploit	2019-08-09
Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to an integer underflow.
CVE-2017-14496US	high7.5	68.4% (99th)	Exploit	2017-10-03
Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a…

+715 more

references (7)

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