Out-of-bounds Read in Nationalsecurityagency Ghidra
CVE-2026-100505
Ghidra versions 9.2 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 containing strings or constant byte stores that end 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 · last modified .
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
EPSS: 0.001 (3.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/NationalSecurityAgency/ghidra (Product, product)
- github.com/NationalSecurityAgency/ghidra/blob/8b6bbb857accdfa20dc5b2f5dea471178… (Product, technical-description)
- Patch Commit (Patch, patch)
- VulnCheck Advisory: Ghidra 11.2 through 12.1.4 Heap Out-of-Bounds Read via StringManager (Patch, Third Party Advisory, 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.