Assessment
Why it matters
EPSS is 0.2%; technical severity is CVSS 7.8.
A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.
Who should care
- Teams operating Binutils, Enterprise Linux, Hardened Images +1 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Binutils, Enterprise Linux, Hardened Images +1 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Red Hat Security advisory RHSA-2026:33527
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-122
- Affected versions
- GNU Binutils (End Including 2.46); Redhat Enterprise Linux (Version 6.0 | Version 8.0 | Version 9.0 | Version 10.0); Redhat Hardened Images (Version -); Redhat Openshift Container Platform (Version 4.0)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 22 April 2026
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Latest EPSS score: 0.2%
- Signal calculated at 12