CVE-2026-81886

NameCVE-2026-81886
Descriptionradare2 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1148820

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
radare2 (PTS)sid6.1.8+ds-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
radare2source(unstable)(unfixed)1148820

Notes

https://github.com/radareorg/radare2/security/advisories/GHSA-3xrx-wh64-8xr8
https://github.com/radareorg/radare2/issues/26224
https://github.com/radareorg/radare2/pull/26180
Fixed by: https://github.com/radareorg/radare2/commit/a7519fdb4da6835c2cecd8fe248e7dd1133cf17a (6.2.0)

Search for package or bug name: Reporting problems