CVE-2026-3441
Heap-Based Buffer Overflow in GNU Binutils bfd Linker Causes Info Leak
Publication date: 2026-03-16
Last updated on: 2026-03-20
Assigner: Red Hat, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 6.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | openshift_container_platform | 4.0 |
| redhat | enterprise_linux | 9.0 |
| gnu | binutils | * |
| redhat | enterprise_linux | 10.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-3441 is a medium-severity vulnerability in GNU Binutils, specifically in the bfd linker component that handles XCOFF object files.
The flaw is a heap-based buffer overflow caused by an out-of-bounds read in the function xcoff_link_add_symbols due to improper validation of the x_scnlen value. This leads to accessing memory beyond the bounds of the csects array.
An attacker can exploit this by convincing a user to run the linker on a specially crafted malicious XCOFF object file, triggering the vulnerability.
How can this vulnerability impact me? :
This vulnerability can lead to information disclosure or an application-level denial of service.
By exploiting the heap-based buffer overflow, an attacker may gain access to sensitive information processed by the linker.
Additionally, the flaw can cause the application to crash or behave unexpectedly, resulting in denial of service.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
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What immediate steps should I take to mitigate this vulnerability?
I don't know