CVE-2023-40097

Local privilege escalation via legacy shortcut URI grant

Published Dec 4, 2023 · Updated Aug 2, 2024

Improper input validation in Android 11, 12, 12L, and 13 allows local users to elevate privileges through a legacy shortcut. PackageManagerHelper.hasPermissionForActivity accepts a chooser intent in a legacy home-screen shortcut and permits its URI grant instead of rejecting that unsupported share flow. Exploitation requires user interaction with the shortcut and lets a low-privilege application bypass URI permission enforcement.

CVSS severity7.8
High
EPSS probability0.13%
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 Android 11, 12, 12L, and 13 allows local users to elevate privileges through a legacy shortcut. PackageManagerHelper.hasPermissionForActivity accepts a chooser intent in a legacy home-screen shortcut and permits its URI grant instead of rejecting that unsupported share flow. Exploitation requires user interaction with the shortcut and lets a low-privilege application bypass URI permission enforcement.

The record

CVE
CVE-2023-40097
Published
Dec 4, 2023
Updated
Aug 2, 2024
Vendor
Google
Product
Android
Classifications
CWE-20, T1404
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=11
  2. Affected versionversion=12
  3. Affected versionversion=12L
  4. Affected versionversion=13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Google · Androidversion=11; version=12; version=12L; version=13

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
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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