CVE-2023-33909

Local contact disclosure via missing permission check

Published Aug 7, 2023 · Updated Oct 17, 2024

Missing authorization in the Contacts service on UNISOC chipsets running Android 11 through 13 allows local users to read contact data. UNISOC identifies a missing permission check but has not published the affected interface, code path, or exact contact fields exposed. Exploitation is local and, under UNISOC's assessment, requires high privileges and user interaction; the reported consequence is confidentiality loss only.

CVSS severity4.2
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 the Contacts service on UNISOC chipsets running Android 11 through 13 allows local users to read contact data. UNISOC identifies a missing permission check but has not published the affected interface, code path, or exact contact fields exposed. Exploitation is local and, under UNISOC's assessment, requires high privileges and user interaction; the reported consequence is confidentiality loss only.

The record

CVE
CVE-2023-33909
Published
Aug 7, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, CWE-200, T1432
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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

4.2UNISOCCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
5.5NIST NVDCVSS: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.

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-862Missing Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1432Access Contact List

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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