CVE-2021-0345

Local privilege escalation via improper input validation

Published Feb 4, 2021 · Updated Aug 3, 2024

Improper input validation in mobile_log_d in Google Cloud Android 10 and 11 allows local users with System privileges to escalate privileges. The Android CNA identifies mobile_log_d as the affected locus but does not disclose which input is accepted or which validation operation fails. Exploitation requires local access and existing System execution privileges, needs no user interaction, and can compromise confidentiality, integrity, and availability.

CVSS severity6.7
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in mobile_log_d in Google Cloud Android 10 and 11 allows local users with System privileges to escalate privileges. The Android CNA identifies mobile_log_d as the affected locus but does not disclose which input is accepted or which validation operation fails. Exploitation requires local access and existing System execution privileges, needs no user interaction, and can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2021-0345
Published
Feb 4, 2021
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-20, T1404
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 4, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-10, Android-11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google Cloud · Androidversion=Android-10, Android-11

Published CVSS scores

6.7NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2NIST National Vulnerability DatabaseAV:L/AC:L/Au:N/C:C/I:C/A:C

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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1404Exploitation for Privilege Escalation

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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