VulnerabilityAnalyzed
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.
MEDIUM 6.7EPSS 0.15%
Does this matter?
Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.7 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.15% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-789
- Affected
- nsa/ghidra
- Source
- disclosure@vulncheck.com
References
- https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-v6c3-h9cp-3whfExploit, Vendor Advisory
- https://www.vulncheck.com/advisories/ghidra-denial-of-service-via-uncontrolled-memory-allocation-in-mach-o-parserThird Party Advisory
- https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-v6c3-h9cp-3whfExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.