PatchTheCVECVE-2026-52759: Ghidra before 12.1.1 contains an uncontrolled memory allocation vulnerability in the Mach-O binary parser that
CVE-2026-52759 is a medium-severity flaw (CVSS 5.5) affecting ghidra. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.2% (top 96%) |
| CISA exploited list | No |
| Weakness | CWE-789 |
| Published | 2026-06-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-52759?
ghidra: upgrade to 12.1.1. Exact commands for each OS are on this page.
Is CVE-2026-52759 being exploited?
CVE-2026-52759 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-52759 affect?
CVE-2026-52759 affects ghidra. Severity is medium (CVSS 5.5). 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
How urgent is CVE-2026-52759?
Priority 25/100. Public exploit reference
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