5.5

CVE-2026-81885

Exploit

radare2: Infinite relocation-chain loop causes denial of service in radare2 NE parser

radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's NE relocation fixup-chain parser was vulnerable because the NE relocation parser followed fixup chains without an active iteration limit or cycle detection. The vulnerability is triggered by opening a crafted NE executable whose in-bounds relocation entry points back to itself instead of reaching 0xffff. The parser repeatedly processed the same relocation and allocated another relocation object on each iteration. This can cause denial of service through continuous CPU and memory consumption. This issue is fixed in version 6.2.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Radare ≫ Radare2 Version < 6.2.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.069
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-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

https://github.com/radareorg/radare2/releases/tag/6.2.0
Release Notes
https://github.com/radareorg/radare2/security/advisories/GHSA-43wr-4j49-rcxj
Patch
Vendor Advisory
https://github.com/radareorg/radare2/issues/26225
Vendor Advisory
Exploit
Issue Tracking
Mitigation
https://github.com/radareorg/radare2/pull/26192
Patch
https://github.com/radareorg/radare2/commit/93d794caa7c2f08413106255d49546e544c1f9f0
Patch