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CVE-2026-52757— Ghidra < 12.1 - Heap-use-after-free in HighVariable::merge() during decompilation

Quick assessment

Affected
nationalsecurityagency ghidra
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

National Security Agency Ghidra是美国国家安全局（National Security Agency）的一款软件逆向工程（SRE）框架。 National Security Agency Ghidra 12.1之前版本存在资源管理错误漏洞，该漏洞源于反编译器的HighVariable::merge()函数中存在释放后重用，导致攻击者通过特制二进制触发堆内存读取和写入。

CVSS 4.4 · Medium EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 2

VendorProduct Version RangeStatus
nationalsecurityagency ghidra < 12.1 affected
12.1 unaffected
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I. Basic Information for CVE-2026-52757

Vulnerability Information
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Vulnerability Title
Ghidra < 12.1 - Heap-use-after-free in HighVariable::merge() during decompilation
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
National Security Agency Ghidra 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
National Security Agency Ghidra是美国国家安全局（National Security Agency）的一款软件逆向工程（SRE）框架。 National Security Agency Ghidra 12.1之前版本存在资源管理错误漏洞，该漏洞源于反编译器的HighVariable::merge()函数中存在释放后重用，导致攻击者通过特制二进制触发堆内存读取和写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nationalsecurityagency ghidra 0 ~ 12.1 -

II. Public POCs for CVE-2026-52757

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III. Intelligence Information for CVE-2026-52757

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Vendor Advisories for CVE-2026-52757 (2)

Same Patch Batch · nationalsecurityagency · 2026-06-10 · 14 CVEs total

CVE-2026-52751 8.8 HIGH Ghidra < 12.1 - Remote Code Execution via Unfiltered RMI Deserialization in Shared Project
CVE-2026-52758 8.8 HIGH Ghidra < 12.1 - SQL Injection via Unescaped Filter Values in BSim Search
CVE-2026-52754 8.8 HIGH Ghidra < 12.1 - Authentication Bypass via Null Signature in PKIAuthenticationModule
CVE-2026-49498 8.8 HIGH Ghidra 11.0 < 12.1 - SQL Injection in PostgreSQL Password Change via Unescaped Username
CVE-2026-52755 7.8 HIGH Ghidra < 12.0.4 - Path Traversal via Zip Slip in Theme Import
CVE-2026-52750 7.8 HIGH Ghidra < 12.1- Command Injection via URL Annotation Click
CVE-2026-52752 7.8 HIGH Ghidra < 12.0.2 - Path Traversal in Extension Installer via ZIP Entry Names
CVE-2026-49496 6.1 MEDIUM Ghidra < 12.1 - Heap-Use-After-Free in SleighBuilder::generatePointerAdd via Vector Reallo
CVE-2026-52753 5.5 MEDIUM Ghidra < 12.0.3 - Out-of-Memory in Rust Symbol Demangler via Malformed Symbol
CVE-2026-49495 5.5 MEDIUM Ghidra 10.2 < 12.1 - Denial of Service via Circular Reference in Mach-O Export Trie Parser
CVE-2026-52756 4.8 MEDIUM Ghidra < 12.2 - Unauthenticated Path Traversal in Debugger ISF Server
CVE-2026-49497 3.3 LOW Ghidra < 12.1 - Path Traversal via .gnu_debuglink in DWARF External Debug File Resolution
CVE-2024-58350 2.9 LOW Ghidra < 11.2 - Use After Free in Sleigh Backend via Static Initialization Order

IV. Related Vulnerabilities

Same product: ghidra
Same vendor: nationalsecurityagency
Same weakness: CWE-416

V. Comments for CVE-2026-52757

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