Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-81884

CVE-2026-81884LOW

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

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  N  L    3.3   .0015    3.7     —

AFFECTED
  Product  Versions   Fixed
  radare2  < 6.2.0 –  —

TIMELINE
  Aug 27  Reserved by GitHub_M
  Sep 22  Published (CNA: GitHub_M)
  Sep 28  EXPLOIT PUBLISHED — CVE-2026-81884 (radareorg radare2). Public exploit reference added.
  Sep 28  RESCORED — CVE-2026-81884 (radareorg radare2). CVSS 2.5 → 3.3 (NVD).

CWE-125 · CNA: GitHub_M · CVSS v3.1 · 5 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
August 27, 2026	Reserved	Reserved by GitHub_M
September 22, 2026	Published	Published (CNA: GitHub_M)
September 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-81884 (radareorg radare2). Public exploit reference added.
September 28, 2026	RESCORED	RESCORED — CVE-2026-81884 (radareorg radare2). CVSS 2.5 → 3.3 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
radareorg	radare2	—	< 6.2.0	—

Weaknesses

CWE-125

References (5)

https://github.com/radareorg/radare2/commit/a73de09fea7516f65c14917d66113316ec7e7d6e [Patch]
https://github.com/radareorg/radare2/issues/26226 [Exploit, Issue Tracking, Mitigation, Vendor Advisory]
https://github.com/radareorg/radare2/pull/26193 [Patch]
https://github.com/radareorg/radare2/releases/tag/6.2.0 [Release Notes]
https://github.com/radareorg/radare2/security/advisories/GHSA-c2g2-2mc7-3x5w [Patch, Vendor Advisory]

Authoritative record: CVE-2026-81884 at cve.org

Vendors: radareorg

Weaknesses: CWE-125

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-81884 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.