Use After Free in Nationalsecurityagency Ghidra
CVE-2026-52757
Ghidra before 12.1 contains a heap-use-after-free vulnerability in the decompiler's HighVariable::merge() function during the variable merging pass. Attackers can trigger this vulnerability by crafting a binary that causes stale pointers in the HighIntersectTest::highedgemap cache to be dereferenced, reading and writing the flags field of freed heap memory when a user opens the binary in Ghidra's decompiler view.
Vulnerability class: Use-After-Free
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:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (4.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% 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
- Nationalsecurityagency Ghidra — versions 0, 12.1
- Nsa Ghidra
Weakness classification (CWE)
References
- github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8jqp-qv73-395r (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/ghidra-heap-use-after-free-in-highvariable-merge-d… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-52757?
- CVE-2026-52757 is a medium-severity vulnerability in Nationalsecurityagency Ghidra, classified under Use After Free. CVSS score: 4.4/10. Published 2026-06-10.
- How severe is CVE-2026-52757?
- Medium severity. CVSS v3 base score is 4.4 out of 10.