{"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": "2026-06-05T11:03:02.273Z"}, "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"}}}}

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