CVE-2023-48357

Local denial of service via unchecked driver write

Published Jan 18, 2024 · Updated Jun 20, 2025

Out-of-bounds write in the VSP driver on UNISOC chipsets running Android 11 through 13 allows local users to interrupt device operation. The driver omits a bounds check before a write, allowing the operation to target memory outside the intended buffer; UNISOC has not disclosed the affected function or value. Exploitation requires System-level execution privileges, and the vendor has not specified whether the interruption is a crash, hang, or reboot.

CVSS severity5.1
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 VSP driver on UNISOC chipsets running Android 11 through 13 allows local users to interrupt device operation. The driver omits a bounds check before a write, allowing the operation to target memory outside the intended buffer; UNISOC has not disclosed the affected function or value. Exploitation requires System-level execution privileges, and the vendor has not specified whether the interruption is a crash, hang, or reboot.

The record

CVE
CVE-2023-48357
Published
Jan 18, 2024
Updated
Jun 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 2025Record 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

5.1UNISOCCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
4.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/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.

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
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.

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Technologies

Your stack

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Your stack

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