{"id":"CVE-2026-100503","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100503","generatedAt":"2026-10-28T03:58:57.212Z","title":"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.","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.","published":"2026-09-26T01:17:00.000Z","lastModified":"2026-10-08T16:43:21.000Z","status":"Analyzed","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":4.8,"severity":"MEDIUM","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-416"],"affected":["nsa/ghidra"],"epss":{"score":0.00118,"percentile":0.01703,"date":"2026-10-27","history":[{"date":"2026-09-26","score":0.00118,"percentile":0.01524}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-26T01:17:00.000Z","detail":{"score":"4.8","severity":"MEDIUM","publishedAt":"2026-09-26T01:16:59.880Z"},"summary":"New CVE, medium severity (CVSS 4.8)."}],"references":[{"url":"https://github.com/NationalSecurityAgency/ghidra","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/merge.cc#L462-L472","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178c2e9fbc/Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc#L2717-L2745","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/NationalSecurityAgency/ghidra/commit/5ef1ee4d7a25a65db195f3a70f681ca74440be61","tags":["Patch"],"source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/ghidra-through-12.1.4-heap-use-after-free-in-decompiler","tags":["Patch","Third Party Advisory"],"source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100503","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}