FKIE_CVE-2026-5732

Vulnerability from fkie_nvd - Published: 2026-04-07 13:16 - Updated: 2026-04-07 19:16
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 140.9.1, Thunderbird < 149.0.2, and Thunderbird < 140.9.1.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=2017867Issue Tracking, Permissions Required
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-25/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-27/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-28/
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2026-29/
Impacted products
Vendor Product Version
mozilla firefox *
mozilla firefox *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
              "matchCriteriaId": "68770777-CF92-4F1C-A7FB-874344D23D39",
              "versionEndExcluding": "140.9.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "CF910B3C-C241-48B5-9066-260750E8E7ED",
              "versionEndExcluding": "149.0.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox \u003c 149.0.2, Firefox ESR \u003c 140.9.1, Thunderbird \u003c 149.0.2, and Thunderbird \u003c 140.9.1."
    }
  ],
  "id": "CVE-2026-5732",
  "lastModified": "2026-04-07T19:16:47.550",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-07T13:16:47.463",
  "references": [
    {
      "source": "security@mozilla.org",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
      ],
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2017867"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-25/"
    },
    {
      "source": "security@mozilla.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-27/"
    },
    {
      "source": "security@mozilla.org",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-28/"
    },
    {
      "source": "security@mozilla.org",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-29/"
    }
  ],
  "sourceIdentifier": "security@mozilla.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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