CVE-2023-21475

Local code execution via missing boundary check

Published Sep 3, 2025 · Updated Feb 26, 2026

Out-of-bounds write in libaudiosaplus_sec.so on select Samsung Android 11, 12, and 13 devices allows local users to execute arbitrary code. The library fails to enforce a proper boundary check before writing, allowing attacker-controlled processing to overwrite adjacent memory. Execution requires local access to an affected device; Samsung has not disclosed the input path, target process, or resulting privilege level.

CVSS severity8.0
High
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

Out-of-bounds write in libaudiosaplus_sec.so on select Samsung Android 11, 12, and 13 devices allows local users to execute arbitrary code. The library fails to enforce a proper boundary check before writing, allowing attacker-controlled processing to overwrite adjacent memory. Execution requires local access to an affected device; Samsung has not disclosed the input path, target process, or resulting privilege level.

The record

CVE
CVE-2023-21475
Published
Sep 3, 2025
Updated
Feb 26, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-787
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile DevicesAffected versions are unavailable in this record.

Published CVSS scores

8.0Samsung MobileCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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-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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