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CVE-2026-58249

Status: Awaiting AnalysisHigh (7.5)—PoC
Severity7.5High · CVSS 3.1
Exploitation probability0.32 %higher than 24% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailableProof of concept on GitHub (unverified)

SAP NetWeaver and SAP Web Dispatcher do not properly validate certain fields in specially crafted requests handled by an internal protocol component. An unauthenticated attacker could send a malicious request that triggers a memory-handling error, causing the affected process to crash. Successful exploitation can therefore result in a high impact on the availability of the affected application. There is no impact on the confidentiality or integrity of the application.

CVSS

Base score
7.5
Version
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.32 %
Percentile among all scored CVEs
24
Score date
10/20/2026

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).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

ATT&CK techniques

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

CVSS AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-191 (validación inadecuada) en componente de protocolo interno causa crash del proceso: negación de servicio (T1499.004).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Affected technologies (2)

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

SAP — NetweaverAISAP — WEB DispatcherAI

CWEs

References

Show 2 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-58249",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-58249",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T13:12:46.398402Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@sap.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cna@sap.com",
      "affectedData": [
        {
          "vendor": "SAP_SE",
          "product": "SAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager)",
          "versions": [
            {
              "status": "affected",
              "version": "HDB 2.00"
            },
            {
              "status": "affected",
              "version": "KRNL64UC 7.53"
            },
            {
              "status": "affected",
              "version": "WEBDISP 7.53"
            },
            {
              "status": "affected",
              "version": "7.54"
            },
            {
              "status": "affected",
              "version": "7.77"
            },
            {
              "status": "affected",
              "version": "7.93"
            },
            {
              "status": "affected",
              "version": "9.16"
            },
            {
              "status": "affected",
              "version": "XS_ADVANCED_RUNTIME 1.00"
            },
            {
              "status": "affected",
              "version": "SAP_EXTENDED_APP_SERVICES 1"
            },
            {
              "status": "affected",
              "version": "CONTSERV 7.53"
            },
            {
              "status": "affected",
              "version": "KERNEL 7.53"
            },
            {
              "status": "affected",
              "version": "9.18"
            },
            {
              "status": "affected",
              "version": "9.19"
            },
            {
              "status": "affected",
              "version": "9.20"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-13T01:16:46.213",
  "references": [
    {
      "url": "https://me.sap.com/notes/3765424",
      "source": "cna@sap.com"
    },
    {
      "url": "https://url.sap/sapsecuritypatchday",
      "source": "cna@sap.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@sap.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SAP NetWeaver and SAP Web Dispatcher do not properly validate certain fields in specially crafted requests handled by an internal protocol component. An unauthenticated attacker could send a malicious request that triggers a memory-handling error, causing the affected process to crash. Successful exploitation can therefore result in a high impact on the availability of the affected application. There is no impact on the confidentiality or integrity of the application."
    }
  ],
  "lastModified": "2026-10-15T20:38:04.303",
  "sourceIdentifier": "cna@sap.com"
}