Vulnerability DatabaseCVE-2026-100503
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CVE-2026-100503
Published:September 26, 2026
Updated:October 09, 2026
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.
Related Resources (7)
https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61
https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100503.json
https://nvd.nist.gov/vuln/detail/CVE-2026-100503
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745
https://github.com/NationalSecurityAgency/ghidra
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472
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CVSS v4
Base Score:
4.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Use After Free
CWE-416
EPSS
Base Score:
0.12