CVE-2023-21430

Local service crash via unchecked buffer read

Published Feb 9, 2023 · Updated Mar 24, 2025

Out-of-bounds read in Samsung Mobile Devices Q(10), R(11), S(12), and T(13) allows local users to trigger a memory-access fault. The mapToBuffer function in libSDKRecognitionText.spensdk.samsung.so reads beyond a buffer because it lacks proper boundary checks. Exploitation requires local low-privileged access and can crash the affected process; Samsung reports no confidentiality impact.

CVSS severity4.4
Medium
EPSS probability0.18%
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 read in Samsung Mobile Devices Q(10), R(11), S(12), and T(13) allows local users to trigger a memory-access fault. The mapToBuffer function in libSDKRecognitionText.spensdk.samsung.so reads beyond a buffer because it lacks proper boundary checks. Exploitation requires local low-privileged access and can crash the affected process; Samsung reports no confidentiality impact.

The record

CVE
CVE-2023-21430
Published
Feb 9, 2023
Updated
Mar 24, 2025
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-125, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2025Record 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=Q(10), R(11), S(12), T(13) <SMR Jan-2023 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Q(10), R(11), S(12), T(13) <SMR Jan-2023 Release 1

Published CVSS scores

4.4Samsung MobileCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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