CVE-2026-46473

Estado: AplazadaAlta (7.5)—

Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand.

Secrets were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.49%
Percentil entre todas las CVEs puntuadas: 40
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %
Impacto principalT1212 Exploitation for Credential Accesscredential access85 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access70 %

Módulo Perl expuesto en red (AV:N, PR:N). CWE-331: generación predecible de secretos TOTP permite obtener credenciales de autenticación multifactor sin interacción.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Application Developer Guidance Privileged Account Management Application Isolation and Sandboxing Exploit Protection Update Software Active Directory Configuration

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Authen — Totp^AI

CWE

CWE-331

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-46473",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-46473",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-21T19:17:39.999382Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "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:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
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  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "repo": "https://github.com/tchatzi/Authen-TOTP",
          "vendor": "TCHATZI",
          "product": "Authen::TOTP",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "0.1.1",
              "versionType": "custom"
            }
          ],
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          "programFiles": [
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          ],
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "Authen::TOTP::gen_secret"
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  "published": "2026-05-21T19:16:53.510",
  "references": [
    {
      "url": "https://github.com/tchatzi/Authen-TOTP/commit/d04f30cc6538d77fc6b6d550da450cf3017b8561.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
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    {
      "url": "https://metacpan.org/release/TCHATZI/Authen-TOTP-0.1.1/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/05/21/15",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
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      "description": [
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    {
      "lang": "en",
      "value": "Authen::TOTP versions before 0.1.1 for Perl generate secrets using rand.\n\nSecrets were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage."
    },
    {
      "lang": "es",
      "value": "Las versiones de Authen::TOTP anteriores a la 0.1.1 para Perl generan secretos usando rand.\n\nLos secretos se generaban usando la función rand integrada de Perl, la cual es predecible e inadecuada para fines de seguridad."
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
}