CVE-2026-6846: Heap-based Buffer Overflow in Red Hat Red Hat Enterprise Linux 10
CVE-2026-6846 is a heap-based buffer overflow vulnerability in the binutils package on Red Hat Enterprise Linux 10. It occurs when processing a specially crafted XCOFF object file during linking. A local attacker could trick a user into processing this malicious file, potentially leading to arbitrary code execution or denial of service. The vulnerability has a high severity with a CVSS score of 7. 8. No official patch or remediation level is currently confirmed from the vendor advisory. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves a heap-buffer-overflow in binutils when handling a crafted XCOFF object file during the linking process on Red Hat Enterprise Linux 10. The flaw allows a local attacker to cause arbitrary code execution or denial of service by convincing a user to process a malicious file. The CVSS 3.1 vector indicates local attack vector with low attack complexity, no privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. The vendor advisory does not specify a remediation level or patch availability as of the published date.
Potential Impact
Successful exploitation can lead to arbitrary code execution, allowing an attacker to run unauthorized commands, or cause a denial of service, making the system unavailable. The attack requires local access and user interaction to process a malicious XCOFF file. The impact on confidentiality, integrity, and availability is high according to the CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-6846 for current remediation guidance. Until an official fix is available, users should avoid processing untrusted XCOFF object files and apply any recommended workarounds from Red Hat.
CVE-2026-6846: Heap-based Buffer Overflow in Red Hat Red Hat Enterprise Linux 10
Description
CVE-2026-6846 is a heap-based buffer overflow vulnerability in the binutils package on Red Hat Enterprise Linux 10. It occurs when processing a specially crafted XCOFF object file during linking. A local attacker could trick a user into processing this malicious file, potentially leading to arbitrary code execution or denial of service. The vulnerability has a high severity with a CVSS score of 7. 8. No official patch or remediation level is currently confirmed from the vendor advisory. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-buffer-overflow in binutils when handling a crafted XCOFF object file during the linking process on Red Hat Enterprise Linux 10. The flaw allows a local attacker to cause arbitrary code execution or denial of service by convincing a user to process a malicious file. The CVSS 3.1 vector indicates local attack vector with low attack complexity, no privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. The vendor advisory does not specify a remediation level or patch availability as of the published date.
Potential Impact
Successful exploitation can lead to arbitrary code execution, allowing an attacker to run unauthorized commands, or cause a denial of service, making the system unavailable. The attack requires local access and user interaction to process a malicious XCOFF file. The impact on confidentiality, integrity, and availability is high according to the CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-6846 for current remediation guidance. Until an official fix is available, users should avoid processing untrusted XCOFF object files and apply any recommended workarounds from Red Hat.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-04-22T07:59:20.292Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-6846","vendor":"Red Hat"}]
Threat ID: 69e88e5219fe3cd2cd83b858
Added to database: 4/22/2026, 9:01:06 AM
Last enriched: 4/22/2026, 9:16:02 AM
Last updated: 4/22/2026, 10:05:24 AM
Views: 65
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