CVE-2026-91881

Status: Awaiting AnalysisCritical (9)—

Severity9Critical · CVSS 3.1

Exploitation probability0.28 %higher than 20% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Dell Terraform Provider for Redfish, versions prior to 1.6.2, contains an Improper Certificate Validation vulnerability in the HTTP transport component. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to information exposure and unauthorized access. This is a Critical severity vulnerability as it allows an unauthenticated attacker to intercept all Redfish BMC traffic including credentials by performing a man-in-the-middle attack, since TLS certificate verification is unconditionally disabled in the base HTTP transport. Dell recommends customers to upgrade at the earliest opportunity.

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.28 %
Percentile among all scored CVEs: 20
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.

ExploitationT1190 Exploit Public-Facing Applicationinitial access85 %
Primary impactT1557 Adversary-in-the-Middlecredential access · collection90 %
Secondary impactT1040 Network Sniffingcredential access · discovery60 %

Vector AV:N/PR:N/UI:N (red sin privilegios) y texto: MITM al no verificar certificados TLS, intercepta tráfico Redfish BMC incluidas credenciales.

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

Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Encrypt Sensitive Information Vulnerability Scanning User Training

Affected technologies (1)

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

Dell — Terraform Provider FOR Redfish^AI

CWEs

CWE-295

References

Show 1 references

https://www.dell.com/support/kbdoc/en-in/000515444/dsa-2026-434-security-update-for-dell-terraform-provider-for-dell-server-multiple-vulnerabilities?msockid=3021cac2195069ed3194ddad186a68f9

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-91881",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2026-91881",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2026-10-15T14:58:04.773346Z"
        }
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          "baseScore": 9,
          "attackVector": "NETWORK",
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          "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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      "source": "security_alert@emc.com",
      "affectedData": [
        {
          "vendor": "Dell",
          "product": "Terraform Provider for Redfish",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.6.2 or later",
              "versionType": "semver"
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  "published": "2026-10-14T16:17:56.767",
  "references": [
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  "vulnStatus": "Awaiting Analysis",
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    }
  ],
  "lastModified": "2026-10-15T15:17:38.510",
  "sourceIdentifier": "security_alert@emc.com"
}