---
id: "CVE-2026-56911"
page: "https://infrastack.ai/live/CVE-2026-56911"
kind: "vulnerability"
aliases: ["CVE-2026-56911"]
title: "Android: missing bounds check in FIPS HMAC handler allows local privilege escalation"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["android", "infrastructure", "local-privilege-escalation"]
not_affected_if: []
published_at: "2026-11-10T20:19:15+00:00"
first_seen_at: "2026-11-10T20:46:06+00:00"
updated_at: "2026-11-10T20:53:51+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56911", "first_seen_at": "2026-11-10T20:46:06+00:00"}]
exploit_sources: []
---

# Android: missing bounds check in FIPS HMAC handler allows local privilege escalation

Link for people: https://infrastack.ai/live/CVE-2026-56911 (this .md is for agents)

A heap buffer overflow in the hwcrypto proxy's FIPS HMAC request handler lacks a bounds check. A local app with system-level execution could use it to escalate privileges.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T20:46:06+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-56911

## From the sources

In handle_fips_hmac_req of hwcrypto_proxy.c, there is a possible heap buffer overflow due to missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

---

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