CVE-2026-30874

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{"affected": [{"affectedData": [{"product": "openwrt", "vendor": "openwrt", "versions": [{"status": "affected", "version": "< 24.10.6"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*", "matchCriteriaId": "12B5818C-BB4D-4486-9C53-7FCA8EF2EDA8", "versionEndExcluding": "24.10.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6, a vulnerability in the hotplug_call function allows an attacker to bypass environment variable filtering and inject an arbitrary PATH variable, potentially leading to privilege escalation. The function is intended to filter out sensitive environment variables like PATH when executing hotplug scripts in /etc/hotplug.d, but a bug using strcmp instead of strncmp causes the filter to compare the full environment string (e.g., PATH=/some/value) against the literal \"PATH\", so the match always fails. As a result, the PATH variable is never excluded, enabling an attacker to control which binaries are executed by procd-invoked scripts running with elevated privileges. This issue has been fixed in version 24.10.6."}, {"lang": "es", "value": "El Proyecto OpenWrt es un sistema operativo Linux dirigido a dispositivos embebidos. En versiones anteriores a la 24.10.6, una vulnerabilidad en la funci\u00f3n hotplug_call permite a un atacante eludir el filtrado de variables de entorno e inyectar una variable PATH arbitraria, lo que podr\u00eda conducir a una escalada de privilegios. La funci\u00f3n est\u00e1 dise\u00f1ada para filtrar variables de entorno sensibles como PATH al ejecutar scripts hotplug en /etc/hotplug.d, pero un error al usar strcmp en lugar de strncmp hace que el filtro compare la cadena de entorno completa (p. ej., PATH= /some /value) contra el literal 'PATH', por lo que la coincidencia siempre falla. Como resultado, la variable PATH nunca es excluida, lo que permite a un atacante controlar qu\u00e9 binarios son ejecutados por scripts invocados por procd que se ejecutan con privilegios elevados. Este problema ha sido solucionado en la versi\u00f3n 24.10.6."}], "id": "CVE-2026-30874", "lastModified": "2026-06-17T10:33:04.280", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.8, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30874", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-20T17:13:02.973267Z", "version": "2.0.3"}}]}, "published": "2026-03-19T23:16:43.847", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/openwrt/openwrt/security/advisories/GHSA-jw28-hxcm-j934"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/openwrt/procd/commit/e08cdc8562f55b9ac228a21f3f7605a18c522b81"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-187"}, {"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "OpenWrt: procd: OpenWrt procd: Privilege escalation via PATH environment variable injection", "id": "2449311", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2449311"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1025", "details": ["A flaw was found in the `procd` component of OpenWrt. A highly privileged local attacker can bypass environment variable filtering in the `hotplug_call` function by injecting an arbitrary `PATH` variable. This vulnerability, caused by an incorrect string comparison, allows the attacker to control which binaries are executed by `procd`-invoked scripts running with elevated privileges, potentially leading to privilege escalation."], "name": "CVE-2026-30874", "public_date": "2026-03-19T22:36:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-30874\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-30874\nhttps://github.com/openwrt/openwrt/security/advisories/GHSA-jw28-hxcm-j934\nhttps://github.com/openwrt/procd/commit/e08cdc8562f55b9ac228a21f3f7605a18c522b81"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,24.10.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "openwrt", "source": "cna", "vendor": "openwrt"}, "product": "openwrt", "vendor": "openwrt"}], "analysis": {"en": {"generated_at": "2026-03-23T20:28:27.168216+00:00", "value": {"mitigation_remediation": ["Upgrade OpenWrt to version 24.10.6 or newer."], "summary": {"action": "Patch Immediately", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "OpenWrt, the Linux operating system for embedded devices, is affected in all releases prior to 24.10.6. The vulnerability affects the core procd component and the hotplug mechanism used across the platform. Users running an older OpenWrt build should verify their version and consider an upgrade.", "description_and_impact": "The hotplug_call function in OpenWrt is designed to execute scripts in /etc/hotplug.d with elevated privileges, filtering out sensitive environment variables such as PATH. The bug uses strcmp instead of strncmp, causing the comparison to always fail and the PATH variable to remain unfiltered. An attacker can thus inject a custom PATH and control which binaries are executed by procd\u2011invoked scripts, leading to privilege escalation. This represents a classic string comparison flaw (CWE\u20111025) and unauthorized privilege escalation (CWE\u2011269).", "risk_and_exploitability": "The CVSS score is 1.8, indicating a low severity, and the EPSS score is less than 1\u202f%, suggesting a low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Likely attack vectors require local access or the ability to place malicious content in /etc/hotplug.d, which is typically restricted. An attacker who can write hotplug scripts or alter environment variables would be able to execute arbitrary binaries with elevated privileges, but remote exploitation without local access is unlikely."}}}}, "created": "2026-03-20T08:54:42.657751+00:00", "updated": "2026-03-25T11:54:23.426908+00:00", "vendors": ["openwrt", "openwrt$PRODUCT$openwrt"]}