CVE-2026-88084

Status: Awaiting AnalysisMedium (5.3)—

Severity5.3Medium · CVSS 3.1

Exploitation probability0.45 %higher than 38% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Allocation of resources without limits or throttling in SQL Server allows an authorized attacker to deny service over a network.

CVSS

Base score: 5.3
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.45 %
Percentile among all scored CVEs: 38
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).

ATT&CK techniques

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

ExploitationT1210 Exploitation of Remote Serviceslateral movement90 %
Primary impactT1499 Endpoint Denial of Serviceimpact80 %

El vector AV:N/PR:L/UI:N indica red con privilegios (T1210); la descripción dice que permite denegar el servicio por red, lo que encaja con T1499.

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

Vulnerability Scanning Threat Intelligence Program Privileged Account Management Network Segmentation Filter Network Traffic Disable or Remove Feature or Program

Affected technologies (1)

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

Microsoft — SQL Server^AI

CWEs

CWE-770

References

Show 1 references

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88084

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-88084",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-88084",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T21:56:21.706452Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2019 (GDR)",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.0",
              "lessThan": "15.0.2200.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2019 for x64-based Systems (CU32)",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.4003.23",
              "lessThan": "15.0.4500.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2025 (CU8)",
          "versions": [
            {
              "status": "affected",
              "version": "-"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        }
      ]
    }
  ],
  "published": "2026-10-13T21:19:42.933",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88084",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Allocation of resources without limits or throttling in SQL Server allows an authorized attacker to deny service over a network."
    }
  ],
  "lastModified": "2026-10-15T20:39:54.150",
  "sourceIdentifier": "secure@microsoft.com"
}