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CVE-2026-100504 Details

Description

Ghidra versions through 12.1.4 contain a stack-based out-of-bounds write vulnerability in the decompiler's leftshift128 function when processing negative shift amounts from p-code. Attackers can craft malicious binaries with specific instruction sequences that trigger the overflow when decompiled, corrupting memory and potentially achieving code execution.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/NationalSecurityAgency/ghidra	[email protected]	Product
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/multiprecision.cc#L29-L61	[email protected]	Product
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/ruleaction.cc#L7848-L7878	[email protected]	Patch
https://github.com/NationalSecurityAgency/ghidra/commit/6babe3c1cec7f5ec920dd16cdc86a02893e5b33c	[email protected]	Patch
https://www.vulncheck.com/advisories/ghidra-through-12.1.4-stack-based-buffer-overflow-via-leftshift128	[email protected]	PatchThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
nsa ghidra	<= 12.1.4
CPE cpe:2.3:a:nsa:ghidra:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Oct 8, 2026	Initial Analysis	[email protected]
Sep 28, 2026	CVE Modified	CISA-ADP
Sep 26, 2026	New CVE Received	[email protected]