CVE-2023-21563

MEDIUM

Microsoft Windows BitLocker - Security Feature Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2023-21563. PoCs published by LR2006-Robot, c-sprinks.

AI-analyzed exploit summary The repository claims to exploit CVE-2023-21563 for cracking BitLocker encryption but contains no actual exploit code, technical details, or proof-of-concept. The README is vague and lacks substance, resembling a lure for external downloads or monetization.

Description

BitLocker Security Feature Bypass Vulnerability

Exploits (2)

nomisec SUSPICIOUS
by LR2006-Robot · poc
https://github.com/LR2006-Robot/bitpixie

The repository claims to exploit CVE-2023-21563 for cracking BitLocker encryption but contains no actual exploit code, technical details, or proof-of-concept. The README is vague and lacks substance, resembling a lure for external downloads or monetization.

Classification
Suspicious 90%
Attack Type
Other
Complexity
Theoretical
Reliability
Theoretical
Target: BitLocker (version unspecified)
No auth needed
Prerequisites: none specified
devstral-2 · analyzed May 24, 2026 Full analysis →
nomisec WRITEUP
by c-sprinks · poc
https://github.com/c-sprinks/bitlocker-bypass-research

This repository contains a detailed technical writeup of exploiting CVE-2023-21563 (BitPixie) to bypass BitLocker full disk encryption. It describes the step-by-step methodology, including PXE boot setup, BIOS configuration, VMK extraction, and privilege escalation using CVE-2024-1086.

Classification
Writeup 95%
Attack Type
Auth Bypass
Complexity
Complex
Reliability
Reliable
Target: Microsoft BitLocker (Windows)
No auth needed
Prerequisites: Physical access to the target laptop · A second machine on the same network to act as a PXE server · BitPixie framework · Ethernet connection
devstral-2 · analyzed Apr 12, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 6.8
EPSS 0.0155
EPSS Percentile 71.8%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (17)
microsoft/windows_10_1607 (2 CPE variants)
microsoft/windows_10_1809 (3 CPE variants)
microsoft/windows_10_20h2 (3 CPE variants)
microsoft/windows_10_21h2 (3 CPE variants)
microsoft/windows_10_22h2 (3 CPE variants)
microsoft/windows_11_21h2 (2 CPE variants)
microsoft/windows_11_22h2 (2 CPE variants)
microsoft/windows_7 (2 CPE variants)
microsoft/windows_8.1 (2 CPE variants)
microsoft/windows_rt_8.1
... and 7 more
Published Jan 10, 2023
Tracked Since Feb 18, 2026