CVE-2026-101633

Status: Awaiting AnalysisMedium (4.3)—

Severity4.3Medium · CVSS 3.1

Exploitation probability0.27 %higher than 18% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Router accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

CVSS

Base score: 4.3
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.27 %
Percentile among all scored CVEs: 18
Score date: 10/24/2026

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 movement85 %
Primary impactT1005 Data from Local Systemcollection60 %

Vector AV:N/PR:L/UI:N: atacante de red con privilegios bajos explota el servicio; el texto cita lectura no autorizada de un subconjunto de datos de MySQL Router.

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 Disable or Remove Feature or Program Application Isolation and Sandboxing

Affected technologies (1)

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

Oracle — Mysql Router^AI

CWEs

CWE-284

References

Show 1 references

https://www.oracle.com/security-alerts/cpuoct2026.html

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-101633",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-101633",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-21T18:19:41.780726Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert_us@oracle.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert_us@oracle.com",
      "affectedData": [
        {
          "vendor": "Oracle Corporation",
          "product": "MySQL Router",
          "versions": [
            {
              "status": "affected",
              "version": "26.7.0",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-20T22:18:17.427",
  "references": [
    {
      "url": "https://www.oracle.com/security-alerts/cpuoct2026.html",
      "source": "secalert_us@oracle.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
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  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General).   The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise MySQL Router.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of MySQL Router accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)."
    }
  ],
  "lastModified": "2026-10-21T19:16:52.027",
  "sourceIdentifier": "secalert_us@oracle.com"
}