Out-of-bounds Read in Gnu Binutils
CVE-2026-4647
A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (6.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
Affected products
- Gnu Binutils
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Hardened Images — versions 2.45.1-5.1.hum1, 2.46.1-1.hum1
- Red Hat Openshift Container Platform 4
- Redhat Enterprise_linux — versions 6.0, 7.0, 8.0
- Redhat Openshift_container_platform — versions 4.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Mitigation, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
- secalert@redhat.com (Broken Link)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2026-4647?
- CVE-2026-4647 is a medium-severity vulnerability in Gnu Binutils, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2026-03-23.
- How severe is CVE-2026-4647?
- Medium severity. CVSS v3 base score is 6.1 out of 10.