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.

CVSS 4.0

4.6CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

4.4CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2026-06-10

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• nsa:ghidra

References

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

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