{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-25657", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-05T20:11:51.419993Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-05T20:11:54.181Z"}}], "cna": {"title": "Ericsson Packet Core Gateway (PCG) - Improper Handling of Syntactically Invalid Structure Vulnerability", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Clemens Keil, Manfred Heinz, Patrick Walker of BDO Cyber Security GmbH"}, {"lang": "en", "type": "finder", "value": "BSI 5G/6G Security Lab TEMIS (Federal Office for Information Security, Germany)"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Ericsson", "product": "Packet Core Gateway (PCG)", "versions": [{"status": "affected", "changes": [{"at": "1.30", "status": "unaffected"}], "version": "0", "lessThan": "1.30", "versionType": "1.30"}], "defaultStatus": "affected"}], "references": [{"url": "https://www.ericsson.com/en/about-us/security/psirt/cve-2026-25657"}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "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", "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>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-228", "description": "CWE-228"}]}], "providerMetadata": {"orgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "shortName": "ERIC", "dateUpdated": "2026-06-05T11:03:02.273Z"}}}, "cveMetadata": {"cveId": "CVE-2026-25657", "state": "PUBLISHED", "dateUpdated": "2026-06-05T20:11:57.051Z", "dateReserved": "2026-02-04T12:41:54.869Z", "assignerOrgId": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "datePublished": "2026-06-05T11:03:02.273Z", "assignerShortName": "ERIC"}, "dataVersion": "5.2"}

{"cveTags": [], "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."}], "id": "CVE-2026-25657", "lastModified": "2026-06-05T15:56:37.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "type": "Secondary"}]}, "published": "2026-06-05T12:16:37.750", "references": [{"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "url": "https://www.ericsson.com/en/about-us/security/psirt/cve-2026-25657"}], "sourceIdentifier": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-228"}], "source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.30)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[1.30,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Packet Core Gateway (PCG)", "source": "cna", "vendor": "Ericsson"}, "product": "packet_core_gateway_(pcg)", "vendor": "ericsson"}], "created": "2026-06-05T13:00:14.048523+00:00", "updated": "2026-06-07T11:17:02.020173+00:00", "vendors": ["ericsson", "ericsson$PRODUCT$packet_core_gateway_(pcg)"]}