CVE-2021-30272

Device crash via unvalidated thread-cache input

Published Jan 3, 2022 · Updated Aug 3, 2024

Null pointer dereference in Qualcomm Snapdragon thread-cache handling allows local users to crash affected devices with crafted input. The closed-source kernel handler accepts user-provided data for a thread-cache operation without validating it before dereferencing a resulting pointer. Local access is required, no user interaction is needed, and successful triggering crashes the affected kernel or device.

CVSS severity7.3
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in Qualcomm Snapdragon thread-cache handling allows local users to crash affected devices with crafted input. The closed-source kernel handler accepts user-provided data for a thread-cache operation without validating it before dereferencing a resulting pointer. Local access is required, no user interaction is needed, and successful triggering crashes the affected kernel or device.

The record

CVE
CVE-2021-30272
Published
Jan 3, 2022
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-476, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=APQ8009W, APQ8017, APQ8096AU, AR8031, AR8035, CSR8811, CSRA6620, CSRA6640, CSRB31024, FSM10055, FSM10056, IPQ5010, IPQ5018, IPQ5028, IPQ6000, IPQ6005, IPQ6010, IPQ6018, IPQ6028, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, MDM8207, MDM9150, MDM9205, MDM9206, MDM9207, MDM9607, MDM9628, MDM9640, MDM9650, MSM8909W, MSM8996AU, PMP8074, QCA1062, QCA1064, QCA4004, QCA4024, QCA6174A, QCA6390, QCA6391, QCA6426, QCA6428, QCA6436, QCA6438, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595AU, QCA6696, QCA8072, QCA8075, QCA8081, QCA8337, QCA9367, QCA9377, QCA9888, QCA9889, QCA9984, QCM2290, QCM4290, QCM6490, QCN5021, QCN5022, QCN5024, QCN5052, QCN5054, QCN5064, QCN5121, QCN5122, QCN5124, QCN5152, QCN5154, QCN5164, QCN5550, QCN6023, QCN6024, QCN6122, QCN6132, QCN7605, QCN7606, QCN9000, QCN9012, QCN9022, QCN9024, QCN9070, QCN9072, QCN9074, QCN9100, QCS2290, QCS405, QCS410, QCS4290, QC ...[truncated*]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=APQ8009W, APQ8017, APQ8096AU, AR8031, AR8035, CSR8811, CSRA6620, CSRA6640, CSRB31024, FSM10055, FSM10056, IPQ5010, IPQ5018, IPQ5028, IPQ6000, IPQ6005, IPQ6010, IPQ6018, IPQ6028, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, MDM8207, MDM9150, MDM9205, MDM9206, MDM9207, MDM9607, MDM9628, MDM9640, MDM9650, MSM8909W, MSM8996AU, PMP8074, QCA1062, QCA1064, QCA4004, QCA4024, QCA6174A, QCA6390, QCA6391, QCA6426, QCA6428, QCA6436, QCA6438, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595AU, QCA6696, QCA8072, QCA8075, QCA8081, QCA8337, QCA9367, QCA9377, QCA9888, QCA9889, QCA9984, QCM2290, QCM4290, QCM6490, QCN5021, QCN5022, QCN5024, QCN5052, QCN5054, QCN5064, QCN5121, QCN5122, QCN5124, QCN5152, QCN5154, QCN5164, QCN5550, QCN6023, QCN6024, QCN6122, QCN6132, QCN7605, QCN7606, QCN9000, QCN9012, QCN9022, QCN9024, QCN9070, QCN9072, QCN9074, QCN9100, QCS2290, QCS405, QCS410, QCS4290, QC ...[truncated*]

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.3Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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