Vulnerability in Ghidra
CVE-2026-52759
Ghidra before 12.1.1 contains an uncontrolled memory allocation vulnerability in the Mach-O binary parser that allows attackers to cause denial of service. An attacker can supply a crafted Mach-O binary with an arbitrarily large ncmds load command count value, forcing the parser to allocate excessive heap memory without validating file size, crashing the Ghidra JVM.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (4.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Ghidra — versions 0, 12.1.1
- Nsa Ghidra
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-v6c3-h9cp-3whf) (vendor-advisory, Exploit, Vendor Advisory)
- www.vulncheck.com/advisories/ghidra-denial-of-service-via-uncontrolled-memory-a… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-52759?
- CVE-2026-52759 is a medium-severity vulnerability in Ghidra, classified under CWE-789. CVSS score: 5.5/10. Published 2026-06-10.
- How severe is CVE-2026-52759?
- Medium severity. CVSS v3 base score is 5.5 out of 10.