CVE-2023-33905

Local service interruption via unchecked memory write

Published Jul 12, 2023 · Updated Nov 27, 2024

Out-of-bounds write in the UNISOC iwnpi server on Android 10 through Android 13 allows local users to interrupt its service. The server performs a memory write without the required bounds check, permitting the write to extend beyond its intended buffer; UNISOC has not disclosed the affected function or input path. Only listed UNISOC chipsets are affected, and exploitation requires local access with System execution privileges; the failure mode is undisclosed.

CVSS severity5.0
Medium
EPSS probability0.11%
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 iwnpi server on Android 10 through Android 13 allows local users to interrupt its service. The server performs a memory write without the required bounds check, permitting the write to extend beyond its intended buffer; UNISOC has not disclosed the affected function or input path. Only listed UNISOC chipsets are affected, and exploitation requires local access with System execution privileges; the failure mode is undisclosed.

The record

CVE
CVE-2023-33905
Published
Jul 12, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.0UNISOCCVSS:3.1/AV:L/AC:L/PR:L/UI:R/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499.004Application or System Exploitation

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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