CVE-2021-1931

highpriority · track · 37EPSS 0.002 · 13 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · PoC

Likely / severe?

0.22% (13th) EPSS

CVSS 7.2 · high

Is it mine?

241 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

cvss

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

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.3–7.2

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

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.16.7mediumAV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · product-security@qualcomm.comexploitability 0.8 · impact 5.9

v3.16.3mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimaryCWE-120US

exploits (4)

Public proof-of-concept and weaponised exploit code.

affected products (241)

Products and version ranges known to be affected.

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music≤ AQT1000, AR8031, AR8035, CSRA6620, CSRA6640, CSRB31024, FSM10055, FSM10056, QCA6174A, QCA6310, QCA6320, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595AU, QCA6696, QCA8337, QCA9377, QCM2290, QCM4290, QCM6125, QCS2290, QCS405, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, SA415M, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SD 636, SD 675, SD 8C, SD 8CX, SD460, SD480, SD660, SD662, SD665, SD670, SD675, SD678, SD690 5G, SD710, SD720G, SD730, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD835, SD845, SD855, SD865 5G, SD870, SD888, SD888 5G, SDM630, SDM830, SDX24, SDX50M, SDX55, SDX55M, SDXR1, SDXR2 5G, SM4125, SM6250, SM6250P, SM7250P, SM7315, SM7325P, WCD9326, WCD9335, WCD9340, WCD9341, WCD9370, WCD9371, WCD9375, WCD9380, WCD9385, WCN3910, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN3999, WCN6740, WCN6750, WCN6850, WCN6851, WCN6856, ...[truncated*]enisa_euvdEU
Qualcomm Technologies Inc. AQT1000all versionsfstec_bduRU
Qualcomm Technologies Inc. AR8031all versionsfstec_bduRU
Qualcomm Technologies Inc. AR8035all versionsfstec_bduRU
Qualcomm Technologies Inc. CSRA6620all versionsfstec_bduRU
Qualcomm Technologies Inc. CSRA6640all versionsfstec_bduRU
Qualcomm Technologies Inc. CSRB31024all versionsfstec_bduRU
Qualcomm Technologies Inc. FSM10055all versionsfstec_bduRU
Qualcomm Technologies Inc. FSM10056all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6174Aall versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6310all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6320all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6335all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6390all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6391all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6420all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6421all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6426all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6430all versionsfstec_bduRU
Qualcomm Technologies Inc. QCA6431all versionsfstec_bduRU

showing 20 of 241

advisories (1)

Vendor and ecosystem advisories describing this.

ASB-A-1790575502021-07-01vendor · osvUS

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv NVD CVE.org MITRE

published 2021-07-13modified 2026-10-13

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+5663 more

references (7)

External citations — patches, advisories, analysis.

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