5.5

CVE-2026-81880

radare2: Uncontrolled resource consumption in radare2 PEF loader

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Apple Preferred Executable Format loader was vulnerable because the PEF loader accepted relocSecCount values that were not bounded by the number of sections or complete relocation records in the input. The vulnerability is triggered by normal binary-format auto-detection of a small crafted Apple PEF file. The loader could perform up to 268,435,456 relocation-section iterations and repeated buffer operations after record offsets passed the end of the file. This can cause denial of service through excessive CPU consumption and prolonged processing. This issue is fixed in version 6.2.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Radare ≫ Radare2 Version < 6.2.0
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.067
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

CWE-834 Excessive Iteration

The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

https://github.com/radareorg/radare2/releases/tag/6.2.0
Release Notes
https://github.com/radareorg/radare2/security/advisories/GHSA-fg6f-rj8g-25pq
Vendor Advisory
https://github.com/radareorg/radare2/commit/87c780e29ee6251cebaab51585d14482cb7740ac
Patch