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CVE-2026-1489

Estado: AplazadaMedia (5.4)—

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (1)

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

Gnome — GlibAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-1489",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-1489",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-27T15:09:00.703183Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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          "vendor": "Red Hat",
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      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM RST2428P",
          "versions": [
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              "version": "0",
              "lessThan": "V4.0",
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            }
          ],
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  "published": "2026-01-27T15:15:57.370",
  "references": [
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      "url": "https://access.redhat.com/security/cve/CVE-2026-1489",
      "source": "secalert@redhat.com"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433348",
      "source": "secalert@redhat.com"
    },
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      "url": "https://gitlab.gnome.org/GNOME/glib/-/issues/3872",
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    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en GLib. Una vulnerabilidad de desbordamiento de entero en su implementación de conversión de mayúsculas y minúsculas Unicode puede llevar a corrupción de memoria. Al procesar cadenas Unicode especialmente diseñadas y extremadamente grandes, un atacante podría desencadenar una asignación de memoria de tamaño insuficiente, lo que resultaría en escrituras fuera de límites. Esto podría causar que las aplicaciones que utilizan GLib para la conversión de cadenas se bloqueen o se vuelvan inestables."
    }
  ],
  "lastModified": "2026-06-17T10:15:53.120",
  "sourceIdentifier": "secalert@redhat.com"
}