---
id: "CVE-2026-55309"
page: "https://infrastack.ai/live/CVE-2026-55309"
kind: "vulnerability"
aliases: ["CVE-2026-55309"]
title: "Secure boot verifier: fault injection bypasses signature checks, enabling local privilege escalation"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["embedded", "infrastructure", "secure-boot"]
not_affected_if: []
published_at: "2026-11-10T20:19:12+00:00"
first_seen_at: "2026-11-10T20:46:05+00:00"
updated_at: "2026-11-10T20:54:07+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55309", "first_seen_at": "2026-11-10T20:46:05+00:00"}]
exploit_sources: []
---

# Secure boot verifier: fault injection bypasses signature checks, enabling local privilege escalation

Link for people: https://infrastack.ai/live/CVE-2026-55309 (this .md is for agents)

Multiple functions in verifier.rs contain a logic error that lets fault injection bypass secure boot signature verification. A local attacker could use this to escalate privileges without extra execution rights.

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

## Timeline

- 2026-11-10T20:46:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-55309

## From the sources

In multiple functions of verifier.rs, there is a possible way to bypass secure boot signature verification via fault injection due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_