Out-of-bounds Read in Nationalsecurityagency Ghidra
CVE-2026-100505
Ghidra versions 11.2 through 12.1.4 contain a heap out-of-bounds read vulnerability in StringManager::getCodepoint when decoding multi-byte UTF-8, UTF-16, or UTF-32 characters without validating remaining buffer length. Attackers can craft malicious binaries with constant byte stores ending in multi-byte lead units to trigger out-of-bounds reads that crash the decompiler or leak adjacent heap memory into decompiled output.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/NationalSecurityAgency/ghidra (product)
- github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178… (technical-description)
- github.com/NationalSecurityAgency/ghidra/commit/e37c57f3d9c29511a1860f0a735df53… (patch)
- www.vulncheck.com/advisories/ghidra-11.2-through-12.1.4-heap-out-of-bounds-read… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100505?
- CVE-2026-100505 is a medium-severity vulnerability in Nationalsecurityagency Ghidra, classified under Out-of-bounds Read. CVSS score: 4.4/10. Published 2026-09-26.
- How severe is CVE-2026-100505?
- Medium severity. CVSS v3 base score is 4.4 out of 10.