CVE-2025-48543Known exploitation

Local privilege escalation via unchecked abstract-class instantiation

Published Sep 4, 2025 · Updated Feb 26, 2026

Use-after-free in Google Cloud Android 13 through 16 allows local users to escape Chrome's sandbox and escalate privileges. During object deserialization, ART's JNI NewObject paths fail to reject abstract classes before allocation, creating invalid object-lifetime state. Exploitation starts in a low-privileged local context, requires no user interaction, reaches system_server, and has seen limited targeted use.

CVSS severity8.8
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Google Cloud Android 13 through 16 allows local users to escape Chrome's sandbox and escalate privileges. During object deserialization, ART's JNI NewObject paths fail to reject abstract classes before allocation, creating invalid object-lifetime state. Exploitation starts in a low-privileged local context, requires no user interaction, reaches system_server, and has seen limited targeted use.

The record

CVE
CVE-2025-48543
Published
Sep 4, 2025
Updated
Feb 26, 2026
Vendor
Google Cloud
Product
Android
Classifications
CWE-416, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 2025Exploitation reportedCISA Known Exploited Vulnerabilities listing
  2. Sep 4, 2025CVE publishedPublication date reported by the CVE source.
  3. Feb 26, 2026Record 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=13
  2. Affected versionversion=14
  3. Affected versionversion=15
  4. Affected versionversion=16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=13; version=14; version=15; version=16

Published CVSS scores

8.8CISA ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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.

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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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Reported exploitation

Technologies

Your stack

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Your stack

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