---
id: CVE-2026-79298
title: >-
  An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and
  fixed in v.11.3.0.34 allows a local attcker to execute arbitrary code via the
  BOOTia32.efi and a crafted cloak32.dat file on the ESP.
summary: >-
  An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and
  fixed in v.11.3.0.34 allows a local attcker to execute arbitrary code via the
  BOOTia32.efi and a crafted cloak32.dat file on the ESP.
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-693
published: '2026-09-16'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:00:03.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79298'
references:
  - url: 'https://github.com/TheMalwareGuardian/CVE-2026-79298'
    label: cve@mitre.org
  - url: >-
      https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy
    label: cve@mitre.org
  - url: >-
      https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.00192
epssPercentile: 0.07867
exploits:
  github: 2
  githubRepos:
    - >-
      https://github.com/TheMalwareGuardian/UEFI-Security-Research-Howyar-SysReturn-NetCopy
    - 'https://github.com/TheMalwareGuardian/CVE-2026-79298'
  checkedAt: '2026-09-25T08:21:14.713Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T15:11:18.342765Z'
ingestedAt: '2026-09-16T19:02:30.722Z'
---

## Overview

An issue in Howyar Technologies Inc SysReturn Versions prior to 11.3.034 and fixed in v.11.3.0.34 allows a local attcker to execute arbitrary code via the BOOTia32.efi and a crafted cloak32.dat file on the ESP.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.