CVE-2025-48543KEV · OVERDUE

Android Runtime Use-After-Free Vulnerability

High · published September 4, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 49.7th percentile for exploit probability.

394
days past CISA
deadline
CVSS v3.1
8.8
EPSS
1%
Percentile
49.7
In the wild
Confirmed
What it is

🚨 We've got a sneaky use-after-free vulnerability that can escape the Chrome sandbox on Android devices! 🔥 Think of it like a mischievous kid who finds a way to sneak out of their playpen—once they're out, they can cause all sorts of chaos in the house, like raiding the cookie jar! An attacker could escalate their privileges locally without needing any extra permissions, which means they could potentially access sensitive system files or manipulate system processes. It's a serious situation that could compromise user data and device integrity—definitely not the cookie raid we want!

Put simply

Think of it like a mischievous kid who finds a way to sneak out of their playpen—once they're out, they can cause all sorts of chaos in the house, like raiding the cookie jar! This vulnerability allows attackers to exploit a use-after-free flaw in multiple locations, enabling them to bypass the Chrome sandbox and escalate privileges on the Android system_server.

What to do

An attacker could escalate their privileges locally without needing any extra permissions, which means they could potentially access sensitive system files or manipulate system processes. It's a serious situation that could compromise user data and device integrity—definitely not the cookie raid we want! To protect your devices, make sure to update to the latest security patch as soon as possible. Regularly check for updates from your device manufacturer to ensure you’re not exposed to this kind of vulnerability. Don't wait, safeguard your devices now! You’ve got this! Stay vigilant and keep your devices secure! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00634 · 49.7th percentile
Published
2025-09-04T18:34Z
KEV added
2025-09-04 · due 2025-09-25
EPSS history
Timeline
  • 04 SEP 18:34Z
    In multiple locations, there is a possible way to escape chrome sandbox to attack android system_server due to a use after free
    cvelistv5
  • 04 SEP 00:00Z
    Added to CISA KEV — remediate by Sep 25
    kev