CVE-2026-40128

Status: Awaiting AnalysisCritical (9)—

SAP NetWeaver Application Server Java (Web Container) allows an unauthenticated attacker to craft a malicious HTTP logon request that manipulates file inclusion parameters, enabling path traversal and processing of the included file. Processing the included file could allow the attacker to view or modify sensitive information or render any part of the local system unavailable.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Base score: 9

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.63%
Percentile among all scored CVEs: 48
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access60 %

Inferred by deterministic rules from the CVSS vector and CWE. Indicative only.

🛡️ ATT&CK mitigations that cover these techniques

Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

SAP — Netweaver Application Server Java^AI

CWEs

CWE-35

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-40128",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-40128",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2026-06-09T00:00:00+00:00"
        }
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    "cvssMetricV31": [
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        "source": "cna@sap.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.2
      }
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  "affected": [
    {
      "source": "cna@sap.com",
      "affectedData": [
        {
          "vendor": "SAP_SE",
          "product": "SAP NetWeaver Application Server Java (Web Container)",
          "versions": [
            {
              "status": "affected",
              "version": "ENGINEAPI 7.50"
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  "published": "2026-06-09T01:16:46.050",
  "references": [
    {
      "url": "https://me.sap.com/notes/3727078",
      "source": "cna@sap.com"
    },
    {
      "url": "https://url.sap/sapsecuritypatchday",
      "source": "cna@sap.com"
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  "vulnStatus": "Awaiting Analysis",
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      "lang": "en",
      "value": "SAP NetWeaver Application Server Java (Web Container) allows an unauthenticated attacker to craft a malicious HTTP logon request that manipulates file inclusion parameters, enabling path traversal and processing of the included file. Processing the included file could allow the attacker to view or modify sensitive information or render any part of the local system unavailable."
    },
    {
      "lang": "es",
      "value": "SAP NetWeaver Servidor de Aplicaciones Java (Contenedor Web) permite a un atacante no autenticado crear una solicitud de inicio de sesión HTTP maliciosa que manipula los parámetros de inclusión de ficheros, lo que permite el salto de ruta y el procesamiento del fichero incluido. El procesamiento del fichero incluido podría permitir al atacante ver o modificar información sensible o dejar cualquier parte del sistema local no disponible."
    }
  ],
  "lastModified": "2026-07-23T08:10:00.137",
  "sourceIdentifier": "cna@sap.com"
}