CVE-2023-40637

Local information disclosure via missing permission check

Published Oct 8, 2023 · Updated Sep 19, 2024

Information disclosure in Unisoc telecom service on affected Android 11 chipsets allows local users to read protected data without additional execution privileges. The telecom service omits a required permission check, allowing an unauthorized local caller to access information that should be restricted. Exploitation requires local access to the device, and the documented consequence is confidentiality loss without reported integrity or availability impact.

CVSS severity5.5
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

Information disclosure in Unisoc telecom service on affected Android 11 chipsets allows local users to read protected data without additional execution privileges. The telecom service omits a required permission check, allowing an unauthorized local caller to access information that should be restricted. Exploitation requires local access to the device, and the documented consequence is confidentiality loss without reported integrity or availability impact.

The record

CVE
CVE-2023-40637
Published
Oct 8, 2023
Updated
Sep 19, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862
Attack vector
local
Privileges
authenticated

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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

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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