CVE-2026-100503

medium

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…

Vendor / product: Nsa — 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.

CVSS

5.5

5.5 (CVSS v3.1)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-09-26 01:16

Modified: 2026-10-08 16:43

NVD status: Analyzed

Last synced 3 days ago

Verified against the source API 2026-10-27 06:56 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

nsa / ghidra ≤12.1.4

Weakness classification (CWE)

CWE-416

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472

Patch / mitigation: https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745

Patch / mitigation: https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61

Patch / mitigation: https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler

References

https://github.com/NationalSecurityAgency/ghidra disclosure@vulncheck.com
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e... disclosure@vulncheck.com
https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e... disclosure@vulncheck.com
https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca744... disclosure@vulncheck.com
https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompil... disclosure@vulncheck.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗

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CVE-2026-100503

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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