Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler's Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Nsa Subscribe
Ghidra Subscribe

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No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/NationalSecurityAgency/ghidra cve-icon cve-icon
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472 cve-icon cve-icon
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745 cve-icon cve-icon
https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61 cve-icon cve-icon
https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler cve-icon cve-icon
History

Sat, 26 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
Description Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler's Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.
Title Ghidra through 12.1.4 Heap Use-After-Free in Decompiler
First Time appeared Nsa
Nsa ghidra
Weaknesses CWE-416
CPEs cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*
Vendors & Products Nsa
Nsa ghidra
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-26T00:36:31.894Z

Reserved: 2026-09-25T22:14:31.017Z

Link: CVE-2026-100503

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-26T01:16:59.880

Modified: 2026-09-26T01:16:59.880

Link: CVE-2026-100503

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T02:45:02Z

Weaknesses