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radare2: Uncontrolled memory allocation in radare2 dmp64 parser

CVSS 3.1 5.5 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-81886

Published

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Windows 64-bit crash-dump dmp64 parser was vulnerable because the Windows dmp64 parser used an input-controlled physical-memory-run PageCount directly as the bound of a per-page allocation loop. The vulnerability is triggered by opening a small crafted full-memory Windows crash dump. The parser repeatedly allocated and appended page descriptors without validating the count against the dump size. This can cause denial of service through excessive memory consumption and processing time. This issue is fixed in version 6.2.0.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-81886

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