Description
A flaw was found in GNU Binutils. This vulnerability, a heap-based buffer overflow, specifically an out-of-bounds read, exists in the bfd linker component. An attacker could exploit this by convincing a user to process a specially crafted malicious XCOFF object file. Successful exploitation may lead to the disclosure of sensitive information or cause the application to crash, resulting in an application level denial of service.
Affected products
gnu: binutils; redhat: openshift container platform; redhat: enterprise linux
References4
- access.redhat.com/security/cve/CVE-2026-3442 Vendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2443828 Issue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:33527
- access.redhat.com/errata/RHSA-2026:39022
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 22 · as of 12 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.