CVE-2026-81884: radare radare2 Out-of-bounds Read

Vulnerability summary

CVE-2026-81884 is a low (CVSS 3.3) Out-of-bounds Read vulnerability in radare radare2. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 22-09-2026
   PublishedVulnerability first disclosed.
2. 22-09-2026
   Last modifiedVulnerability information updated.

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.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.