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CVE-2026-4371

🗓️ 24 Mar 2026 20:27:15Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 9 Views

CVE-2026-4371: out of bounds IMAP read could crash Thunderbird or leak data.

Related
Detection
Affected
Refs
NVD
Node
mozillathunderbirdRange<140.9.0esr
OR
mozillathunderbirdRange<149.0-
[
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.9",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "149",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

Data

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17 Jun 2026 10:56Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.4
EPSS0.00285
SSVC
9