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{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-6846", "lastModified": "2026-04-22T09:16:27.607", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "secalert@redhat.com", "type": "Primary"}]}, "published": "2026-04-22T09:16:27.607", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-6846"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460006"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "secalert@redhat.com", "type": "Primary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-22T10:23:02.139362+00:00", "value": {"mitigation_remediation": ["Update binutils to the latest available package provided by Red\u00a0Hat.", "If using a custom build, apply Red\u00a0Hat's fix or upgrade the binutils source to the patched revision.", "Periodically scan for and remove any malicious XCOFF files or restrict file permissions to prevent local execution."], "summary": {"action": "Immediate Patch", "impact": "Arbitrary Code Execution"}, "threat_synthesis": {"affected_systems": "Red\u00a0Hat products affected include Red\u00a0Hat Enterprise\u00a0Linux 6, 7, 8, 9 and 10, Red\u00a0Hat Hardened Images, and Red\u00a0Hat OpenShift Container Platform\u00a04. The affected binaries are those shipped by these distributions; precise package names and patch levels are not listed in the advisory.", "description_and_impact": "A heap\u2011buffer\u2011overflow flaw exists in binutils when it processes a specially crafted XCOFF object file during the link stage. The overflow can be triggered by a malformed section header that causes a write beyond the bounds of a heap buffer. If exploited, the attacker can gain arbitrary code execution, allowing the execution of arbitrary commands or the compromise of the system, or may trigger a denial of service that renders the affected machine unavailable. The weakness is identified as CWE\u2011122.", "risk_and_exploitability": "The CVSS score of 7.8 indicates a high severity. EPSS is currently unavailable, so the estimated exploitability probability cannot be quantified, but the vulnerability requires local privilege \u2013 the attacker must be able to trick a user into opening the malicious XCOFF file. The vulnerability is not in CISA\u2019s KEV catalog, so no public exploit is known. Still, because arbitrary code execution is possible, the risk is significant to any system that links arbitrary object files supplied by an untrusted source."}}}}, "created": "2026-04-22T10:30:14.511022+00:00", "updated": "2026-04-22T10:30:14.511033+00:00", "vendors": []}