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CVE-2021-30309

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute,...

7.8 High

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.14%Down 0.7 points since Feb 13, 2022
90%50%10%1%

What each source reports

CVE List Score used 7.8

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Record
CVE-2021-30309
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
EUVDEUVD-2021-17240 7.8

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Record
EUVD-2021-17240
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-cwg8-4j87-pp8g No score

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute,...

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Record
GHSA-cwg8-4j87-pp8g
Weakness
CWE-120
Updated
2026-11-02
NVD 7.8

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Record
CVE-2021-30309
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-120
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-30309 is a high vulnerability (CVSS 7.8) in Qualcomm, Inc. Snapdragon Compute, Snapdragon Consumer Iot, Snapdragon Industrial Iot, Snapdragon Mobile, published February 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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