CVE-2020-11286

Memory corruption via mixed USB control requests

Published Feb 22, 2021 · Updated Aug 4, 2024

Untrusted pointer dereference in Qualcomm Snapdragon platforms allows physically proximate attackers to corrupt memory via USB control transfers. The Wired Connectivity component mishandles a pointer when device-, interface-, and endpoint-category standard requests are combined in one transfer sequence. Exploitation requires physical USB access; published records do not identify a narrower memory-corruption consequence or disclose affected firmware versions.

CVSS severity6.8
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in Qualcomm Snapdragon platforms allows physically proximate attackers to corrupt memory via USB control transfers. The Wired Connectivity component mishandles a pointer when device-, interface-, and endpoint-category standard requests are combined in one transfer sequence. Exploitation requires physical USB access; published records do not identify a narrower memory-corruption consequence or disclose affected firmware versions.

The record

CVE
CVE-2020-11286
Published
Feb 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119, T1458
Attack vector
physical
Privileges
unauthenticated

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

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1458Replication Through Removable Media

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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