CVE-2026-100503
Ghidra through 12.1.4 Heap Use-After-Free in Decompiler
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 26, 2026
- Updated
- Oct 22, 2026
- Reserved
- Sep 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | VulnCheck |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
ghidraNationalSecurityAgency |
|
References
- Patch Commitpatch
- https://github.com/NationalSecurityAgency/ghidraproduct
- https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472technical-description
- https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745technical-description
- VulnCheck Advisory: Ghidra through 12.1.4 Heap Use-After-Free in Decompilerthird-party-advisory
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