CVE-2021-1930· NVD / CVE Program· CNA qualcomm

Possible out of bounds read due to incorrect validation of incoming buffer length in Snapdragon Auto, Snapdragon Compute, Snapdragon Connect

Possible out of bounds read due to incorrect validation of incoming buffer length in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

HighCVSS 7.1 · v3.1—No exploit No fix recorded

Memory safety

Noroxi analysis

No Noroxi analysis for this record yet

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Published: Sep 8, 2021
Updated: Jun 16, 2026
EPSS: 0.1% · 3th percentile
CWE: CWE-125

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CNA vs NVD score

NVD: 7.1
CNA · qualcomm: 5.5; 1.6 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
qualcomm	aqt1000 firmware	cpe:2.3:o:qualcomm:aqt1000_firmware
qualcomm	aqt1000	cpe:2.3:h:qualcomm:aqt1000
qualcomm	csrb31024 firmware	cpe:2.3:o:qualcomm:csrb31024_firmware
qualcomm	csrb31024	cpe:2.3:h:qualcomm:csrb31024
qualcomm	qca6174a firmware	cpe:2.3:o:qualcomm:qca6174a_firmware
qualcomm	qca6174a	cpe:2.3:h:qualcomm:qca6174a
qualcomm	qca6390 firmware	cpe:2.3:o:qualcomm:qca6390_firmware
qualcomm	qca6390	cpe:2.3:h:qualcomm:qca6390
qualcomm	qca6391 firmware	cpe:2.3:o:qualcomm:qca6391_firmware
qualcomm	qca6391	cpe:2.3:h:qualcomm:qca6391
qualcomm	qca6420 firmware	cpe:2.3:o:qualcomm:qca6420_firmware
qualcomm	qca6420	cpe:2.3:h:qualcomm:qca6420

and 182 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

qualcomm aqt1000 firmwareall versions
qualcomm csrb31024 firmwareall versions
qualcomm qca6174a firmwareall versions
qualcomm qca6390 firmwareall versions
qualcomm qca6391 firmwareall versions
qualcomm qca6420 firmwareall versions
qualcomm qca6421 firmwareall versions
qualcomm qca6426 firmwareall versions
qualcomm qca6430 firmwareall versions
qualcomm qca6431 firmwareall versions
qualcomm qca6436 firmwareall versions
qualcomm qca6564au firmwareall versions
qualcomm qca6574 firmwareall versions
qualcomm qca6574a firmwareall versions
qualcomm qca6574au firmwareall versions
qualcomm qca6584au firmwareall versions
qualcomm qca6595au firmwareall versions
qualcomm qca6696 firmwareall versions
qualcomm qca9377 firmwareall versions
qualcomm qcm2290 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (qualcomm). Independent of NVD's CPE analysis and usually ahead of it.

Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
- AQT1000, CSRB31024, QCA6174A, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595AU, QCA6696, QCA9377, QCM2290, QCM4290,affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

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CVE-2021-1965Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Auto, Snapdragon Compute, Snapdrago
40Plan
CVE-2023-43548Buffer Copy Without Checking Size of Input in Video
39Monitor
CVE-2023-43519Buffer Copy without Checking Size of Input (`Classic Buffer Overflow`) in Video
39Monitor
CVE-2023-43518Untrusted Pointer Dereference in Video
39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).