CVE-2026-4647: Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library

Overview

Severity

Medium (CVSS 6.1)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-03-27

Last Updated

2026-08-07

EPSS Score

0.17% (percentile: 6.4%)

Affected Products (10)

Open Source Software

• cbl2 binutils 2.37-20 on CBL Mariner 2.0
• cbl2 crash 8.0.1-5 on CBL Mariner 2.0
• azl3 binutils 2.41-10 on Azure Linux 3.0
• cbl2 gdb 11.2-10 on CBL Mariner 2.0
• azl3 crash 9.0.0-1 on Azure Linux 3.0
• azl3 gdb 13.2-6 on Azure Linux 3.0
• azl3 crash 9.0.0-2 on Azure Linux 3.0
• azl3 binutils 2.41-11 on Azure Linux 3.0
• azl3 gdb 13.2-7 on Azure Linux 3.0
• cbl2 binutils 2.37-20

Revision History

• 2026-03-27: Information published.
• 2026-04-14: Information published.
• 2026-04-14: Information published.
• 2026-04-22: Information published.
• 2026-04-29: Information published.
• 2026-08-07: Information published.