CVE-2022-27835

Arbitrary memory write via UWB boundary check

Published Apr 11, 2022 · Updated Aug 3, 2024

Improper boundary checking in Samsung Mobile Devices UWB firmware on Android 12 before SMR Apr-2022 Release 1 allows attackers to perform arbitrary memory writes via crafted UWB input. The UWB firmware accepts an input whose bounds are not correctly checked before a memory operation, allowing an out-of-bounds write. Exploitation requires local access and user interaction according to the published CVSS assessments, and can affect firmware integrity, confidentiality, and availability.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper boundary checking in Samsung Mobile Devices UWB firmware on Android 12 before SMR Apr-2022 Release 1 allows attackers to perform arbitrary memory writes via crafted UWB input. The UWB firmware accepts an input whose bounds are not correctly checked before a memory operation, allowing an out-of-bounds write. Exploitation requires local access and user interaction according to the published CVSS assessments, and can affect firmware integrity, confidentiality, and availability.

The record

CVE
CVE-2022-27835
Published
Apr 11, 2022
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-20, CWE-787
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=S(12) <SMR Apr-2022 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=S(12) <SMR Apr-2022 Release 1

Published CVSS scores

9.3NVDAV:N/AC:M/Au:N/C:C/I:C/A:C
7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.6Samsung MobileCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-787Out-of-bounds Write

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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