CVE-2023-40635

Local privilege escalation via missing linkturbo authorization

Published Oct 8, 2023 · Updated Sep 19, 2024

Missing authorization in linkturbo on Android 11 for affected UNISOC chipsets allows local users to escalate privileges. UNISOC identifies a missing permission check in linkturbo but has not published the request, function, or privileged operation that omits authorization. The flaw requires local access but no prior privileges or user interaction; the specific elevated capability and interruption mode are undisclosed.

CVSS severity4.0
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

Missing authorization in linkturbo on Android 11 for affected UNISOC chipsets allows local users to escalate privileges. UNISOC identifies a missing permission check in linkturbo but has not published the request, function, or privileged operation that omits authorization. The flaw requires local access but no prior privileges or user interaction; the specific elevated capability and interruption mode are undisclosed.

The record

CVE
CVE-2023-40635
Published
Oct 8, 2023
Updated
Sep 19, 2024
Vendor
UNISOC
Product
UNISOC T610
Classifications
CWE-862, T1404
Attack vector
local
Privileges
unauthenticated

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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=android11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

UNISOC · UNISOC T610version=android11
UNISOC · UNISOC T616version=android11
UNISOC · UNISOC T770version=android11
UNISOC · UNISOC T820version=android11
UNISOC · UNISOC T618version=android11
UNISOC · UNISOC SC9863Aversion=android11
UNISOC · UNISOC T612version=android11
UNISOC · UNISOC T760version=android11
UNISOC · UNISOC T606version=android11
UNISOC · UNISOC S8000version=android11

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0UNISOCCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1404Exploitation for Privilege Escalation

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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