CVE-2023-42537

Out-of-bounds read and write via missing bounds check

Published Nov 7, 2023 · Updated Sep 17, 2024

Improper input validation in libsaped on Samsung Mobile Devices before SMR Nov-2023 Release 1 allows local attackers to read and write out of bounds. The get_head_crc function processes input without the boundary check needed to keep memory accesses within the intended buffer. The flaw affects Android 11, 12, and 13; Samsung has not disclosed the input path or any consequence beyond the stated out-of-bounds access.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in libsaped on Samsung Mobile Devices before SMR Nov-2023 Release 1 allows local attackers to read and write out of bounds. The get_head_crc function processes input without the boundary check needed to keep memory accesses within the intended buffer. The flaw affects Android 11, 12, and 13; Samsung has not disclosed the input path or any consequence beyond the stated out-of-bounds access.

The record

CVE
CVE-2023-42537
Published
Nov 7, 2023
Updated
Sep 17, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-787, CWE-125
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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 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

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.4Samsung MobileCVSS:3.1/AV:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
CWE-125Out-of-bounds Read

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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