CVE-2023-33899

Local information disclosure via unchecked telephony access

Published Jul 12, 2023 · Updated Dec 3, 2024

Missing authorization in UNISOC Android telephony service allows local users to read sensitive information through a service call. UNISOC identifies the flaw only as an omitted permission check and has not published the affected entry point or data returned. A locally executing process needs no privileges or user interaction, and the documented consequence is disclosure only.

CVSS severity4.0
Medium
EPSS probability0.10%
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 UNISOC Android telephony service allows local users to read sensitive information through a service call. UNISOC identifies the flaw only as an omitted permission check and has not published the affected entry point or data returned. A locally executing process needs no privileges or user interaction, and the documented consequence is disclosure only.

The record

CVE
CVE-2023-33899
Published
Jul 12, 2023
Updated
Dec 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0UNISOCCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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