CVE-2023-33915

Information disclosure via missing LTE permission check

Published Sep 4, 2023 · Updated Sep 30, 2024

Information disclosure in the UNISOC LTE protocol stack on T760, T770, T820, and S8000 allows remote attackers to read unspecified data. The stack omits a required permission check while handling exceptional LTE conditions, but UNISOC has not disclosed the specific message or code path. The attacker must be within adjacent radio-network reach; exploitation requires neither prior privileges nor user interaction.

CVSS severity4.2
Medium
EPSS probability0.42%
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 the UNISOC LTE protocol stack on T760, T770, T820, and S8000 allows remote attackers to read unspecified data. The stack omits a required permission check while handling exceptional LTE conditions, but UNISOC has not disclosed the specific message or code path. The attacker must be within adjacent radio-network reach; exploitation requires neither prior privileges nor user interaction.

The record

CVE
CVE-2023-33915
Published
Sep 4, 2023
Updated
Sep 30, 2024
Vendor
UNISOC
Product
UNISOC T770
Classifications
CWE-703, CWE-862
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

UNISOC · UNISOC T770version=Android11
UNISOC · UNISOC T820version=Android11
UNISOC · UNISOC T760version=Android11
UNISOC · UNISOC S8000version=Android11

Published CVSS scores

4.2UNISOCCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-703Improper Check or Handling of Exceptional Conditions
CWE-862Missing Authorization

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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