CVE-2020-11147

Privileged local memory corruption via unsafe list iteration

Published Feb 22, 2021 · Updated Aug 4, 2024

Use-after-free in Qualcomm Snapdragon audio modules allows local users with high privileges to corrupt memory during object cleanup. An incorrect list-iteration macro permits an object to be removed and freed while the audio module continues the same traversal, causing access to freed storage. Successful exploitation requires high local privileges and can expose or alter component data or interrupt the affected audio service.

CVSS severity6.7
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Qualcomm Snapdragon audio modules allows local users with high privileges to corrupt memory during object cleanup. An incorrect list-iteration macro permits an object to be removed and freed while the audio module continues the same traversal, causing access to freed storage. Successful exploitation requires high local privileges and can expose or alter component data or interrupt the affected audio service.

The record

CVE
CVE-2020-11147
Published
Feb 22, 2021
Updated
Aug 4, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-416
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 22, 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=AQT1000, PM3003A, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM660, PM660A, PM660L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855B, PM855L, PM855P, PMI632, PMK7350, PMK8002, PMK8003, PMK8350, PMR525, PMR735A, PMR735B, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1500, QBT2000, QCA6390, QCA6391, QCA6420, QCA6430, QDM2307, QDM2308, QDM2310, QDM3301, QDM3302, QDM4643, QDM4650, QDM5579, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4100, QET4101, QET5100, QET5100M, QET6100, QET6110, QFS2530, QFS2580, QFS2608, QFS2630, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA4340, QPA4360, QPA5461, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4621, QPM4630, QPM4640, QPM4641, QPM4650, QPM5620, QPM5621, QPM56 ...[truncated*]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · Snapdragonversion=AQT1000, PM3003A, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM660, PM660A, PM660L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855B, PM855L, PM855P, PMI632, PMK7350, PMK8002, PMK8003, PMK8350, PMR525, PMR735A, PMR735B, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1500, QBT2000, QCA6390, QCA6391, QCA6420, QCA6430, QDM2307, QDM2308, QDM2310, QDM3301, QDM3302, QDM4643, QDM4650, QDM5579, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4100, QET4101, QET5100, QET5100M, QET6100, QET6110, QFS2530, QFS2580, QFS2608, QFS2630, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA4340, QPA4360, QPA5461, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4621, QPM4630, QPM4640, QPM4641, QPM4650, QPM5620, QPM5621, QPM56 ...[truncated*]

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

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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