Google Android: Local privilege escalation via insecure firewall default value
Summary
A flaw in the access control code of several Android files lets a local attacker release secure coprocessors from reset through unclaimed firewall registers. The cause is an insecure default value. A successful attacker could escalate privileges on the device. Exploitation requires System-level privileges, but no user interaction.
Affected
- Google Android on Pixel devices with a patch level before 2026-11-05
- Exact affected builds: Unknown.
Fixed in
- Pixel security patch level 2026-11-05 or later
- Check the patch level under Settings > About phone.
Workaround
- Unknown. The sources describe no workaround.
Exploitation
- CISA SSVC assessment: Exploitation none, Automatable no, Technical Impact total.
- No evidence of exploitation in the wild or public proof of concept was found at the time of research.
Our recommendation
- Install the Pixel update with patch level 2026-11-05 or later.
- Verify the patch level across all managed Pixel devices.
- Replace Pixel devices that no longer receive security updates.
- Limit the number of users with administrative access to mobile devices.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-57013 www.cve.org
- Pixel Update Bulletin - November 2026 source.android.com
- OSV PUB-A-510952857 osv.dev
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 11:26.
Original description (NVD)
In access_control_enable of multiple files, there is a possible way to release secure coprocessors from reset via unclaimed firewall registers due to an insecure default value. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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