CVE-2026-52759

Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser

MEDIUM
5.5
CVSS Score
Published: June 10, 2026 at 12:43 PM UTC
Updated: June 17, 2026 at 10:57 AM UTC
2 products affected across 2 vendorsGhidraGhidra

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 12.1.1
Affected range stops below 12.1.1, so it looks safe — our inference, not a vendor statement
v < 12.1.1
Vendor states this is fixed in 12.1.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-789

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