CVE-2026-95400: ST NFC HAL out-of-bounds write in global memory

CVE-2026-95400 · Severity: info · Published 2026-11-10

An NFC hardware abstraction layer (HAL) component in Android devices contains an out-of-bounds write vulnerability that allows attackers to write beyond allocated memory boundaries. A local attacker can exploit this flaw to escalate privileges without needing special permissions or user interaction, potentially gaining control over the device.

Technologies: Google Android. Vendors: Google.

Quick answers

Is CVE-2026-95400 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-95400 being exploited in the wild.
How severe is CVE-2026-95400?
Informational severity, published 10 November 2026.
Which products and versions are affected?
Google Android Pixel devices with security patch level before 2026-11-05; STMicroelectronics St21nfc Versions in Pixel devices before 2026-11-05 patch.
Is there a fix for CVE-2026-95400?
Yes: fixed in Pixel devices with Android security patch level 2026-11-05 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-95400 attacked?
It is attacked with local access.
Am I affected by CVE-2026-95400?
Check whether you run Google Android or STMicroelectronics St21nfc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Pixel devices with Android security patch level 2026-11-05 or later

Technical details

The vulnerability exists in StNfc_hal_write of hal_st21nfc.cc due to an incorrect bounds check that fails to validate write operations against global memory buffers. This is a local privilege escalation (EoP) via out-of-bounds memory write; the attack vector is local with no additional execution privileges required. Patches are available in Pixel security updates with patch level 2026-11-05 or later.

Affected products

  • Google Android Pixel devices with security patch level before 2026-11-05
  • STMicroelectronics st21nfc Versions in Pixel devices before 2026-11-05 patch

Timeline

  • 2026-11-10: disclosed
  • 2026-11-05: patched

References

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