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radare2: Heap out-of-bounds read in radare2 Mach-O LC_DATA_IN_CODE parser

CVSS 3.1 2.5 LOWCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-81884

Published

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Mach-O LC_DATA_IN_CODE parser was vulnerable because the Mach-O LC_DATA_IN_CODE parser trusted dataoff and datasize and allowed a final partial record to be processed. The vulnerability is triggered by opening a crafted Mach-O file while the non-default bin.verbose option is enabled. When datasize was not a multiple of data_in_code_entry, the last iteration read beyond the allocated buffer. This can cause a heap out-of-bounds read and possible process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.

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Affected versions, risk and source history

cve-program · CVE-2026-81884

Published

radare2

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "radareorg",
                    "product": "radare2",
                    "versions": [
                        {
                            "version": "< 6.2.0",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 12 Nov 22:49 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current