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CVE-2022-29914

Status: ModifiedMedium (6.5)—

When reusing existing popups Firefox would have allowed them to cover the fullscreen notification UI, which could have enabled browser spoofing attacks. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

CVSS

Exploitation probability (EPSS)

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).

Affected technologies (3)

Mozilla — FirefoxMozilla — Firefox ESRMozilla — Thunderbird

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2022-29914",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-29914",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-15T19:58:16.711127Z"
        }
      }
    ],
    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
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  "affected": [
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              "versionType": "custom"
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  ],
  "published": "2022-12-22T20:15:26.397",
  "references": [
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1746448",
      "tags": [
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        "Permissions Required",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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    {
      "type": "Secondary",
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      "description": [
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          "value": "CWE-1021"
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      ]
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  ],
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    {
      "lang": "en",
      "value": "When reusing existing popups Firefox would have allowed them to cover the fullscreen notification UI, which could have enabled browser spoofing attacks. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100."
    },
    {
      "lang": "es",
      "value": "Al reutilizar ventanas emergentes existentes, Firefox les habría permitido cubrir la interfaz de usuario de notificación en pantalla completa, lo que podría haber permitido ataques de suplantación de identidad del navegador. Esta vulnerabilidad afecta a Thunderbird &lt; 91.9, Firefox ESR &lt; 91.9 y Firefox &lt; 100."
    }
  ],
  "lastModified": "2026-06-17T04:40:57.470",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "100.0"
            },
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}