CVE-2026-48829

Estado: AplazadaAlta (7.5)—

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.63%
Percentil entre todas las CVEs puntuadas: 48
Fecha de la puntuación: 5/10/2026

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 access60 %
Impacto principalT1499 Endpoint Denial of Serviceimpact55 %

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Tecnologías afectadas (1)

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

GNU — Sasl^AI

CWE

CWE-476

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-48829",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48829",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-26T15:07:48.596630Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "GNU",
          "product": "GNU SASL",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.2.3",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
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  ],
  "published": "2026-05-24T04:16:39.150",
  "references": [
    {
      "url": "https://codeberg.org/gsasl/gsasl/commit/da9b5ae2962b014879e4a406c3b38f25aa70e97a",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-security-announce/2026/msg00182.html",
      "source": "cve@mitre.org"
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    {
      "url": "https://lists.gnu.org/archive/html/help-gsasl/2026-05/msg00000.html",
      "source": "cve@mitre.org"
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      "url": "https://lists.gnu.org/archive/html/help-gsasl/2026-05/msg00002.html",
      "source": "cve@mitre.org"
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      "url": "https://lists.debian.org/debian-lts-announce/2026/06/msg00007.html",
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  "vulnStatus": "Deferred",
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c."
    },
    {
      "lang": "es",
      "value": "En GNU SASL anterior a 2.2.3, DIGEST-MD5 tiene una desreferencia de puntero NULL que afecta tanto a clientes como a servidores, a través de un token conocido sin un carácter = que lo acompañe. Esto ocurre en lib/digest-md5/getsubopt.c."
    }
  ],
  "lastModified": "2026-07-23T17:10:00.123",
  "sourceIdentifier": "cve@mitre.org"
}