CVE-2026-100503: Use After Free in NationalSecurityAgency ghidra
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.
AI Analysis
Technical Summary
CVE-2026-100503 is a heap use-after-free vulnerability in NationalSecurityAgency's Ghidra software, specifically in the decompiler's Funcdata::opInsertAfter function. The vulnerability arises due to stale INDIRECT effect-op references. When a maliciously crafted x86-64 binary is decompiled, this flaw can cause the decompile helper process to crash, leading to denial of service conditions. The vulnerability affects Ghidra versions from 0 up to and including 12.1.4.
Potential Impact
The vulnerability causes the decompile helper process to crash during analysis of a malicious binary, resulting in denial of service to users relying on Ghidra for binary analysis. There is no indication of code execution or data corruption beyond the crash. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid decompiling untrusted binaries or use alternative analysis methods to prevent denial of service.
CVE-2026-100503: Use After Free in NationalSecurityAgency ghidra
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.
CVSS v4.0
Score 4.8medium
Affected software
NationalSecurityAgency
ghidra
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-100503 is a heap use-after-free vulnerability in NationalSecurityAgency's Ghidra software, specifically in the decompiler's Funcdata::opInsertAfter function. The vulnerability arises due to stale INDIRECT effect-op references. When a maliciously crafted x86-64 binary is decompiled, this flaw can cause the decompile helper process to crash, leading to denial of service conditions. The vulnerability affects Ghidra versions from 0 up to and including 12.1.4.
Potential Impact
The vulnerability causes the decompile helper process to crash during analysis of a malicious binary, resulting in denial of service to users relying on Ghidra for binary analysis. There is no indication of code execution or data corruption beyond the crash. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid decompiling untrusted binaries or use alternative analysis methods to prevent denial of service.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-25T22:14:31.017Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab71d5ef7a7c541069a3374
Added to database: 09/26/2026, 01:18:22 UTC
Last enriched: 09/26/2026, 01:32:48 UTC
Last updated: 09/26/2026, 03:41:43 UTC
Views: 7
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