CVE-2025-48577

Local privilege escalation via stale keyguard callbacks

Published Mar 2, 2026 · Updated Mar 2, 2026

A race condition in Android 14 through 16 allows local users to bypass the lockscreen during a user switch without interaction. KeyguardViewMediator can complete biometric-authentication or delayed keyguard-dismissal callbacks for the prior user after the active user changes, dismissing that prior user's keyguard instead of rejecting the stale result. Exploitation requires local access and precise timing during a user switch, and grants access beyond the lockscreen without existing privileges.

CVSS severity7.4
High
EPSS probability0.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Android 14 through 16 allows local users to bypass the lockscreen during a user switch without interaction. KeyguardViewMediator can complete biometric-authentication or delayed keyguard-dismissal callbacks for the prior user after the active user changes, dismissing that prior user's keyguard instead of rejecting the stale result. Exploitation requires local access and precise timing during a user switch, and grants access beyond the lockscreen without existing privileges.

The record

CVE
CVE-2025-48577
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
Go standard library
Product
Android
Classifications
CWE-362, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 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=14
  2. Affected versionversion=15
  3. Affected versionversion=16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Go standard library · Androidversion=14; version=15; version=16

Published CVSS scores

7.4CISA-ADPCVSS:3.1/AV:L/AC:H/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1068Exploitation 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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