CVE-2021-20284: GNU Binutils

Medium severity, CVSS 5.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.

Affected products

• GNU Binutils: version 2.35.1 only
• Netapp Cloud Backup: affected versions not specified
• Netapp Ontap Select Deploy Administration Utility: affected versions not specified

Published 2021-03-26. Last modified 2026-06-17.