CVE-2023-42653

Local service interruption via unchecked buffer write

Published Nov 1, 2023 · Updated Sep 5, 2024

Out-of-bounds write in the faceid service on UNISOC chipsets running Android 10 through Android 12 allows local users to interrupt the service. The service copies input into a buffer without checking its size, permitting a write beyond the buffer boundary. Local access without user interaction is required; NVD rates privileges low, while UNISOC rates them high, and only availability loss is documented.

CVSS severity4.4
Medium
EPSS probability0.08%
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 the faceid service on UNISOC chipsets running Android 10 through Android 12 allows local users to interrupt the service. The service copies input into a buffer without checking its size, permitting a write beyond the buffer boundary. Local access without user interaction is required; NVD rates privileges low, while UNISOC rates them high, and only availability loss is documented.

The record

CVE
CVE-2023-42653
Published
Nov 1, 2023
Updated
Sep 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1642
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 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 vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.4UNISOCCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1642Endpoint Denial of Service

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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