CVE-2026-52757

MEDIUM 4.4

Ghidra < 12.1 - Heap-use-after-free in HighVariable::merge() during decompilation

CVSS Score

4.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-416
Vendor	nationalsecurityagency
Product	ghidra
Published	Jun 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Affected Versions

nationalsecurityagency / ghidra

0 < 12.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-8jqp-qv73-395r vulncheck.com: https://www.vulncheck.com/advisories/ghidra-heap-use-after-free-in-highvariable-merge-during-decompilation

Credits

Apple Security Engineering and Architecture (SEAR)