CVE-2018-9379

Deleted-photo disclosure via uncleared thumbnail slots

Published Jan 17, 2025 · Updated Mar 13, 2025

Information disclosure in Android 6.0 through 8.1 allows local users to view thumbnails of deleted photos through MediaStore. MiniThumbFile retained thumbnail bytes after the associated media row was deleted, while cleanup did not zero the fixed-size slot; the patch adds eraseMiniThumb() and invokes targeted erasure during deletion. The attack requires local low-privilege access, needs no user interaction, and exposes only residual thumbnail content rather than the deleted original.

CVSS severity5.5
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

Information disclosure in Android 6.0 through 8.1 allows local users to view thumbnails of deleted photos through MediaStore. MiniThumbFile retained thumbnail bytes after the associated media row was deleted, while cleanup did not zero the fixed-size slot; the patch adds eraseMiniThumb() and invokes targeted erasure during deletion. The attack requires local low-privilege access, needs no user interaction, and exposes only residual thumbnail content rather than the deleted original.

The record

CVE
CVE-2018-9379
Published
Jan 17, 2025
Updated
Mar 13, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-200, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=Android Kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android Kernel

Published CVSS scores

5.5CISA-ADPCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

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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