CVE-2026-0019: In SettingsLib, there is a possible way to disable system components due to a logic error in the code

Synopsis

A privilege escalation vulnerability exists in Android's SettingsLib library, caused by a logic error that allows an attacker to disable system components. The flaw is reachable locally, requires only a low-privilege account, and needs no interaction from any other user on the device. Successful exploitation gives the attacker full read, write, and execution control at an elevated privilege level. HarborGuard tracks this advisory and will make a patched-image rebuild available the moment an upstream fix is published.

HarborGuard Coverage

Exploit Conditions

• Network reachabilityNot required

  The attacker needs an existing shell or process on the host; no network exposure is required.

• AuthenticationRequired

  Any low-privilege account on the device is sufficient; no administrative or elevated credentials are needed to reach the vulnerable code path.

• Victim interactionNot required

  No action from another user or victim is required; the attacker can trigger exploitation entirely on their own.

• Attack complexityDetail

  The exploit is reliable and condition-free, with no race conditions, specific memory layout, or other environmental prerequisites required.

Blast Radius

• The attacker gains the ability to read sensitive data stored by system components, including configuration state and application data accessible at elevated privilege.
• The attacker can modify or disable core Android system components, altering device behavior or removing security-relevant services.
• The attacker achieves local privilege escalation, effectively gaining the same execution rights as a system-level process.
• Disabling system components can render security controls, update mechanisms, or critical device services inoperable.