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CVE-2020-6792

Status: ModifiedMedium (4.3)—

When deriving an identifier for an email message, uninitialized memory was used in addition to the message contents. This vulnerability affects Thunderbird < 68.5.

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 (2)

Canonical — Ubuntu LinuxMozilla — Thunderbird

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2020-6792",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
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        "exploitabilityScore": 2.8
      }
    ]
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  "affected": [
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      "source": "security@mozilla.org",
      "affectedData": [
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          "vendor": "Mozilla",
          "product": "Thunderbird",
          "versions": [
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              "version": "unspecified",
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              "versionType": "custom"
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  ],
  "published": "2020-03-02T05:15:12.103",
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1609607",
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      "source": "security@mozilla.org"
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      "tags": [
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      "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/",
      "tags": [
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      "source": "security@mozilla.org"
    },
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        },
        {
          "lang": "en",
          "value": "CWE-909"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "When deriving an identifier for an email message, uninitialized memory was used in addition to the message contents. This vulnerability affects Thunderbird < 68.5."
    },
    {
      "lang": "es",
      "value": "Cuando se deriva un identificador para un mensaje de correo electrónico, una memoria no inicializada fue usada en adición al contenido del mensaje. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.5."
    }
  ],
  "lastModified": "2026-06-17T03:23:48.877",
  "configurations": [
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}