CVE-2023-33914Network attack vector

Remote information disclosure via missing NIA0 verification

Published Sep 4, 2023 · Updated Oct 1, 2024

Improper missing-value handling in UNISOC T760, T770, T820, and S8000 on Android 11, 12, and 13 allows remote attackers to disclose information. The modem's NIA0 Security Mode Command path fails to verify an incorrect or missing input before processing it. UNISOC's vector requires low privileges, while NVD assesses no privileges; neither source identifies the disclosed data.

CVSS severity6.4
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper missing-value handling in UNISOC T760, T770, T820, and S8000 on Android 11, 12, and 13 allows remote attackers to disclose information. The modem's NIA0 Security Mode Command path fails to verify an incorrect or missing input before processing it. UNISOC's vector requires low privileges, while NVD assesses no privileges; neither source identifies the disclosed data.

The record

CVE
CVE-2023-33914
Published
Sep 4, 2023
Updated
Oct 1, 2024
Vendor
UNISOC
Product
UNISOC T770
Classifications
CWE-20, CWE-230
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=android_11
  2. Affected versionversion=android_12
  3. Affected versionversion=android_13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

UNISOC · UNISOC T770version=android_11; version=android_12; version=android_13
UNISOC · UNISOC T820version=android_11; version=android_12; version=android_13
UNISOC · UNISOC T760version=android_11; version=android_12; version=android_13
UNISOC · UNISOC S8000version=android_11; version=android_12; version=android_13

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.4UNISOCCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-230Improper Handling of Missing Values

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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