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El elemento afectado es la función sgwc_s11_handle_modify_bearer_request del archivo /sgwc/s11-handler.c del componente SGWC. La manipulación conduce a denegación de servicio. Es posible iniciar el ataque remotamente. El exploit ha sido divulgado al público y puede ser utilizado. Aplicar un parche es la acción recomendada para solucionar este problema. El informe del problema está marcado como ya solucionado."}],"affected":[{"source":"cna@vuldb.com","affectedData":[{"vendor":"n/a","product":"Open5GS","cpes":["cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*"],"modules":["SGWC"],"versions":[{"version":"2.7.0","status":"affected"},{"version":"2.7.1","status":"affected"},{"version":"2.7.2","status":"affected"},{"version":"2.7.3","status":"affected"},{"version":"2.7.4","status":"affected"},{"version":"2.7.5","status":"affected"},{"version":"2.7.6","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-01-29T14:45:28.087387Z","id":"CVE-2026-1587","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cna@vuldb.com","type":"Secondary","description":[{"lang":"en","value":"CWE-404"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*","versionEndIncluding":"2.7.6","matchCriteriaId":"9C77332A-BAA3-4FE7-A237-B87F175C6F48"}]}]}],"references":[{"url":"https://github.com/open5gs/open5gs/","source":"cna@vuldb.com"},{"url":"https://github.com/open5gs/open5gs/issues/4272","source":"cna@vuldb.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/open5gs/open5gs/issues/4272#event-21968635948","source":"cna@vuldb.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/open5gs/open5gs/issues/4272#issue-3795156752","source":"cna@vuldb.com","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://vuldb.com/?ctiid.343350","source":"cna@vuldb.com","tags":["Permissions Required","VDB Entry"]},{"url":"https://vuldb.com/?id.343350","source":"cna@vuldb.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?submit.738376","source":"cna@vuldb.com","tags":["Exploit","Third Party Advisory","VDB Entry"]}]}}]}