CVE-2026-4012

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4012", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-03-11T19:05:43.939Z", "datePublished": "2026-03-12T07:32:10.359Z", "dateUpdated": "2026-03-12T15:02:42.185Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-12T07:32:10.359Z"}, "title": "rxi fe fe.c read_ out-of-bounds", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-125", "lang": "en", "description": "Out-of-Bounds Read"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "rxi", "product": "fe", "versions": [{"version": "ed4cda96bd582cbb08520964ba627efb40f3dd91", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in rxi fe up to ed4cda96bd582cbb08520964ba627efb40f3dd91. The impacted element is the function read_ of the file src/fe.c. This manipulation with the input 1 causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 4.8, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.3, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.3, "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 1.7, "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-03-11T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-03-11T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-03-11T20:10:48.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Oneafter (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.350534", "name": "VDB-350534 | rxi fe fe.c read_ out-of-bounds", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.350534", "name": "VDB-350534 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.769774", "name": "Submit #769774 | rxi fe master-branch Out-of-Bounds Read", "tags": ["third-party-advisory"]}, {"url": "https://github.com/rxi/fe/issues/34", "tags": ["issue-tracking"]}, {"url": "https://github.com/oneafter/0211/blob/main/fe/repro", "tags": ["exploit"]}, {"url": "https://github.com/rxi/fe/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-12T15:00:36.843907Z", "id": "CVE-2026-4012", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-12T15:02:42.185Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-4012", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-12T15:00:36.843907Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-12T15:02:36.526Z"}}], "cna": {"title": "rxi fe fe.c read_ out-of-bounds", "credits": [{"lang": "en", "type": "reporter", "value": "Oneafter (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 4.8, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.3, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.3, "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 1.7, "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR"}}], "affected": [{"vendor": "rxi", "product": "fe", "versions": [{"status": "affected", "version": "ed4cda96bd582cbb08520964ba627efb40f3dd91"}]}], "timeline": [{"lang": "en", "time": "2026-03-11T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-03-11T01:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-03-11T20:10:48.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/?id.350534", "name": "VDB-350534 | rxi fe fe.c read_ out-of-bounds", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.350534", "name": "VDB-350534 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.769774", "name": "Submit #769774 | rxi fe master-branch Out-of-Bounds Read", "tags": ["third-party-advisory"]}, {"url": "https://github.com/rxi/fe/issues/34", "tags": ["issue-tracking"]}, {"url": "https://github.com/oneafter/0211/blob/main/fe/repro", "tags": ["exploit"]}, {"url": "https://github.com/rxi/fe/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in rxi fe up to ed4cda96bd582cbb08520964ba627efb40f3dd91. The impacted element is the function read_ of the file src/fe.c. This manipulation with the input 1 causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "Out-of-Bounds Read"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "Memory Corruption"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-12T07:32:10.359Z"}}}, "cveMetadata": {"cveId": "CVE-2026-4012", "state": "PUBLISHED", "dateUpdated": "2026-03-12T15:02:42.185Z", "dateReserved": "2026-03-11T19:05:43.939Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-03-12T07:32:10.359Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "fe", "vendor": "rxi", "versions": [{"status": "affected", "version": "ed4cda96bd582cbb08520964ba627efb40f3dd91"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in rxi fe up to ed4cda96bd582cbb08520964ba627efb40f3dd91. The impacted element is the function read_ of the file src/fe.c. This manipulation with the input 1 causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet."}, {"lang": "es", "value": "Se determin\u00f3 una vulnerabilidad en rxi fe hasta ed4cda96bd582cbb08520964ba627efb40f3dd91. El elemento afectado es la funci\u00f3n read_ del archivo src/fe.c. Esta manipulaci\u00f3n con la entrada 1 causa una lectura fuera de l\u00edmites. El ataque requiere acceso local. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. Este producto utiliza un modelo de lanzamiento continuo para entregar actualizaciones continuas. Como resultado, la informaci\u00f3n de versi\u00f3n espec\u00edfica para las versiones afectadas o actualizadas no est\u00e1 disponible. El proyecto fue informado del problema tempranamente a trav\u00e9s de un informe de problema, pero a\u00fan no ha respondido."}], "id": "CVE-2026-4012", "lastModified": "2026-06-17T10:55:51.280", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 1.7, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.1, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.9, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4012", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-12T15:00:36.843907Z", "version": "2.0.3"}}]}, "published": "2026-03-12T08:16:11.593", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/oneafter/0211/blob/main/fe/repro"}, {"source": "cna@vuldb.com", "url": "https://github.com/rxi/fe/"}, {"source": "cna@vuldb.com", "url": "https://github.com/rxi/fe/issues/34"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?ctiid.350534"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?id.350534"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/?submit.769774"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-125"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "ed4cda96bd582cbb08520964ba627efb40f3dd91"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "fe", "source": "cna", "vendor": "rxi"}, "product": "fe", "vendor": "rxi"}], "analysis": {"en": {"generated_at": "2026-03-18T15:35:18.697963+00:00", "value": {"mitigation_remediation": ["Apply the latest commit or update rxi fe to a version that includes the fix (e.g., fetch the latest source from GitHub).", "If an update is not yet available, restrict the processing of untrusted input or run the program in a restricted environment to prevent malicious inputs.", "Monitor the rxi fe repository and issue tracker for announced fixes and apply them as soon as possible."], "summary": {"action": "Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the rxi:fe project, impacting all releases up to commit ed4cda96bd582cbb08520964ba627efb40f3dd91. Because the project follows a rolling-release model, specific version numbers are not published; any build released before the fix is potentially vulnerable.", "description_and_impact": "rxi fe's read_ function in src/fe.c performs an out-of-bounds read when processing a special length-1 input, allowing a local attacker to read memory beyond the intended buffer. This results in Information Disclosure (CWE-119 and CWE-125) and is rated medium severity with a CVSS score of 4.8.", "risk_and_exploitability": "The exploit requires local access and has been publicly disclosed, but its EPSS score is below 1% and it is not listed in CISA\u2019s KEV catalog, indicating a low likelihood of widespread exploitation. A local attacker could trigger the out-of-bounds read to obtain sensitive data, but the vulnerability does not provide a path to remote code execution."}}}}, "created": "2026-03-13T09:53:23.619603+00:00", "updated": "2026-03-20T15:50:00.573579+00:00", "vendors": ["rxi", "rxi$PRODUCT$fe"]}