CVE-2025-24191

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{"affected": [{"affectedData": [{"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "15.4", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "E3BD0A90-23F1-430A-8119-E14055F7E621", "versionEndExcluding": "15.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The issue was addressed with improved validation of environment variables. This issue is fixed in macOS Sequoia 15.4. An app may be able to modify protected parts of the file system."}, {"lang": "es", "value": "El problema se solucion\u00f3 mejorando la validaci\u00f3n de las variables de entorno. Este problema se solucion\u00f3 en macOS Sequoia 15.4. Una aplicaci\u00f3n podr\u00eda modificar partes protegidas del sistema de archivos."}], "id": "CVE-2025-24191", "lastModified": "2026-06-17T08:58:16.520", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-24191", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-02T19:09:28.960128Z", "version": "2.0.3"}}]}, "published": "2025-03-31T23:15:17.470", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/122373"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2025/Apr/8"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-28T03:18:20.969351+00:00", "value": {"mitigation_remediation": ["Upgrade your Mac to macOS Sequoia 15.4 or later to receive the fixed input validation.", "As a temporary precaution, restrict execution of untrusted applications that may inject environment variables, or remove unnecessary environment variables from system or user profiles.", "Monitor system logs for unexpected modifications in protected directories and investigate promptly."], "summary": {"action": "Apply Patch", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "Apple macOS, specifically macOS Sequoia versions older than 15.4, which lack the patched validation logic. Any system running those releases is susceptible. ", "description_and_impact": "An application can exploit improper validation of environment variables, allowing it to modify protected areas of the file system. This flaw provides local privilege escalation because the attacker can write or replace files in system directories typically restricted to elevated users. The weakness is a classic input validation failure (CWE\u201120). The impact is that the attacker can gain increased capabilities by altering critical system files, potentially compromising system integrity and stability. Overall, the vulnerability can be used to step beyond the application\u2019s intended permissions and affect system security. ", "risk_and_exploitability": "The CVSS score of 5.5 suggests moderate severity, while the EPSS of less than 1% indicates a very low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the likely attack vector requires a malicious or compromised application running with user privileges, which then injects crafted environment variables. Once the unsafe environment is in place, the application can perform file system modifications that would normally be restricted. "}}}}, "created": "2026-04-28T03:30:19.827531+00:00", "title": "Privilege Escalation via Environment Variable Injection on macOS", "updated": "2026-04-28T03:30:19.828209+00:00", "vendors": []}