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CVE-2022-29127 is a Microsoft BitLocker security feature bypass vulnerability in legacy integrity validation within the Windows boot environment. The flaw was caused by BitLocker using an incorrect offset while walking associated boot options. As a result, crafted BCD entries could contain dangerous associated options that were not properly covered by legacy integrity validation checks, allowing malicious boot configuration changes to evade detection. The issue affects the trust decisions BitLocker makes when determining whether the boot chain has been modified in a way that should block transparent unlock or require recovery.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Specific Microsoft Windows vulnerability referenced in KB 5013945 for Windows 10 1909; exploit availability is indicated in the content.
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Specific Microsoft Windows vulnerability referenced in the advisory for Windows 10 1507 / KB5013963.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.