CVE-2023-40652

Local service interruption via out-of-bounds JPG write

Published Oct 8, 2023 · Updated Sep 19, 2024

Out-of-bounds write in the UNISOC JPG driver on T606, T612, and T616 chipsets with Android 11 allows local users to interrupt service. The driver inadequately validates input before a write, allowing that write to cross the intended memory boundary. Exploitation requires local access with System execution privileges; UNISOC identifies denial of service but does not disclose whether the result is a hang, crash, or reboot.

CVSS severity6.0
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 UNISOC JPG driver on T606, T612, and T616 chipsets with Android 11 allows local users to interrupt service. The driver inadequately validates input before a write, allowing that write to cross the intended memory boundary. Exploitation requires local access with System execution privileges; UNISOC identifies denial of service but does not disclose whether the result is a hang, crash, or reboot.

The record

CVE
CVE-2023-40652
Published
Oct 8, 2023
Updated
Sep 19, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 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

6.0UNISOCCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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

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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