CVE-2020-11146

Local kernel memory corruption via unchecked IOCTL index

Published Jan 21, 2021 · Updated Aug 4, 2024

Out-of-bounds write in Qualcomm Snapdragon kernel components allows local users to corrupt memory through a crafted IOCTL request. The IOCTL copy path uses a user-controlled array index without validating that it remains within the destination buffer. Access to the affected kernel interface with low privileges is required; the overwrite can compromise protected data or crash the device.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Qualcomm Snapdragon kernel components allows local users to corrupt memory through a crafted IOCTL request. The IOCTL copy path uses a user-controlled array index without validating that it remains within the destination buffer. Access to the affected kernel interface with low privileges is required; the overwrite can compromise protected data or crash the device.

The record

CVE
CVE-2020-11146
Published
Jan 21, 2021
Updated
Aug 4, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-129, CAPEC-100, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=APQ8076, AQT1000, AR8031, AR8035, CSRA6620, CSRA6640, MSM8937, PM215, PM3003A, PM4125, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM640A, PM640L, PM640P, PM660, PM660L, PM670, PM670L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8005, PM8008, PM8009, PM8150, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855B, PM855L, PM855P, PM8909, PM8916, PM8937, PM8952, PM8956, PM8998, PMC1000H, PMD9655, PMI632, PMI8937, PMI8952, PMI8998, PMK7350, PMK8002, PMK8003, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMM855AU, PMR525, PMR735A, PMR735B, PMW3100, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1500, QBT2000, QCA4020, QCA6174A, QCA6175A, QCA6310, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCA8337, QCA9379, QCM4290, QCS405, Q ...[truncated*]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=APQ8076, AQT1000, AR8031, AR8035, CSRA6620, CSRA6640, MSM8937, PM215, PM3003A, PM4125, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM640A, PM640L, PM640P, PM660, PM660L, PM670, PM670L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8005, PM8008, PM8009, PM8150, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855B, PM855L, PM855P, PM8909, PM8916, PM8937, PM8952, PM8956, PM8998, PMC1000H, PMD9655, PMI632, PMI8937, PMI8952, PMI8998, PMK7350, PMK8002, PMK8003, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMM855AU, PMR525, PMR735A, PMR735B, PMW3100, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1500, QBT2000, QCA4020, QCA6174A, QCA6175A, QCA6310, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCA8337, QCA9379, QCM4290, QCS405, Q ...[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
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
CAPEC-100Overflow Buffers
T1068Exploitation for Privilege Escalation

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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