{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25657","assignerOrgId":"85b1779b-6ecd-4f52-bcc5-73eac4659dcf","state":"PUBLISHED","assignerShortName":"ERIC","dateReserved":"2026-02-04T12:41:54.869Z","datePublished":"2026-06-05T11:03:02.273Z","dateUpdated":"2026-06-05T20:11:57.051Z"},"containers":{"cna":{"providerMetadata":{"orgId":"85b1779b-6ecd-4f52-bcc5-73eac4659dcf","shortName":"ERIC","dateUpdated":"2026-06-05T11:03:02.273Z"},"title":"Ericsson Packet Core Gateway (PCG) - Improper Handling of Syntactically Invalid Structure Vulnerability","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-228","description":"CWE-228","type":"CWE"}]}],"affected":[{"vendor":"Ericsson","product":"Packet Core Gateway (PCG)","versions":[{"status":"affected","version":"0","lessThan":"1.30","changes":[{"at":"1.30","status":"unaffected"}],"versionType":"1.30"}],"defaultStatus":"affected"}],"descriptions":[{"lang":"en","value":"Ericsson Packet Core Gateway (PCG) versions prior to 1.30 contain an Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability where an attacker continuously sending a specially crafted message can cause service degradation. The impact continues as long the attack persists but the system recovers from the crashes when the attack stops.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Ericsson Packet Core Gateway (PCG) versions prior to 1.30 contain an Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability where an attacker continuously sending a specially crafted message can cause service degradation. The impact continues as long the attack persists but the system recovers from the crashes when the attack stops.</p>"}]}],"references":[{"url":"https://www.ericsson.com/en/about-us/security/psirt/cve-2026-25657"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"Clemens Keil, Manfred Heinz, Patrick Walker of BDO Cyber Security GmbH","type":"finder"},{"lang":"en","value":"BSI 5G/6G Security Lab TEMIS (Federal Office for Information Security, Germany)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-05T20:11:51.419993Z","id":"CVE-2026-25657","options":[{"Exploitation":"none"},{"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":"2026-06-05T20:11:57.051Z"}}]}}