CVE-2026-15003

MEDIUM

Binutils: gnu binutils: heap-buffer-overflow in linker leads to information disclosure and denial of service

Title source: cna
STIX 2.1

Description

A flaw was found in the GNU Binutils (Binary Utilities) linker. This vulnerability, a heap-buffer-overflow read (CWE-125), occurs when the linker processes a specially crafted 32-bit XCOFF (Extended Common Object File Format) object file. An attacker could exploit this by providing a malicious file, leading to an out-of-bounds read of memory. This can result in information disclosure, potentially revealing sensitive heap data, and a Denial of Service (DoS) due to the linker crashing.

References (4)

Core 4
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-15003
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2497805
https://bugzilla.redhat.com/show_bug.cgi?id=2497805
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:47171
https://access.redhat.com/errata/RHSA-2026:47171

Scores

CVSS v3 5.6
EPSS 0.0011
EPSS Percentile 1.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (8)
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat Hardened Images
Red Hat/Red Hat Hardened Images 2.46.1-1.1.hum1
Red Hat/Red Hat OpenShift Container Platform 4
Published Jul 27, 2026
Tracked Since Jul 27, 2026