Heap Buffer Overflow Vulnerability in Binutils Affects Local Users
CVE-2026-6846

7.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Vendor
CVE Published:
22 April 2026

What is CVE-2026-6846?

A vulnerability exists in binutils that could be exploited by a local attacker to conduct a heap buffer overflow when handling specially crafted XCOFF object files. If successful, this flaw may enable the execution of unauthorized commands or result in a denial of service, compromising system availability and integrity.

References

https://access.redhat.com/security/cve/CVE-2026-6846
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460006
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Takao Sato for reporting this issue.
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