CVE-2020-11230

Memory corruption via qseecom physical-address update race

Published Mar 17, 2021 · Updated Aug 4, 2024

Memory corruption in Qualcomm Snapdragon's qseecom HLOS driver allows local users to corrupt memory through a race condition. The driver updates ION physical addresses in a shared buffer after exposing that buffer to user space, permitting a time-of-check/time-of-use change during the update. Exploitation requires local high privileges and successful race timing; the resulting corruption can compromise confidentiality, integrity, and availability.

CVSS severity6.7
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Qualcomm Snapdragon's qseecom HLOS driver allows local users to corrupt memory through a race condition. The driver updates ION physical addresses in a shared buffer after exposing that buffer to user space, permitting a time-of-check/time-of-use change during the update. Exploitation requires local high privileges and successful race timing; the resulting corruption can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2020-11230
Published
Mar 17, 2021
Updated
Aug 4, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-367
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 17, 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, FSM10055, PM3003A, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855A, PM855B, PM855L, PM855P, PMK7350, PMK8002, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMR525, PMR735A, PMR735B, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT2000, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6574AU, QCA6696, QDM2301, QDM2305, QDM2307, QDM2308, QDM2310, QDM3301, QDM3302, QDM4643, QDM4650, QDM5579, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4101, QET5100, QET5100M, QET6100, QET6110, QFS2530, QFS2580, QFS2608, QFS2630, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA5461, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4621, QPM4630, QPM4640, QPM4641, QPM4650, QPM5621, QPM5641, QPM5658, QPM5670, QPM5677, QPM5 ...[truncated*]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · Snapdragonversion=AQT1000, FSM10055, PM3003A, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855A, PM855B, PM855L, PM855P, PMK7350, PMK8002, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMR525, PMR735A, PMR735B, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT2000, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6574AU, QCA6696, QDM2301, QDM2305, QDM2307, QDM2308, QDM2310, QDM3301, QDM3302, QDM4643, QDM4650, QDM5579, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4101, QET5100, QET5100M, QET6100, QET6110, QFS2530, QFS2580, QFS2608, QFS2630, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA5461, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4621, QPM4630, QPM4640, QPM4641, QPM4650, QPM5621, QPM5641, QPM5658, QPM5670, QPM5677, QPM5 ...[truncated*]

Published CVSS scores

6.7Qualcomm Technologies, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
6.4NIST NVDCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition

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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