CNVD-2026-11805

Vulnerability from cnvd - Published: 2026-02-28
VLAI
Title
多款Mozilla产品安全绕过漏洞（CNVD-2026-11805）
Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。Mozilla Firefox ESR是美国Mozilla基金会的Firefox（Web浏览器）的一个延长支持版本。Mozilla Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 多款Mozilla产品存在安全绕过漏洞，攻击者可利用该漏洞绕过安全限制。
Severity
高
Patch Name
多款Mozilla产品安全绕过漏洞（CNVD-2026-11805）的补丁
Patch Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。Mozilla Firefox ESR是美国Mozilla基金会的Firefox（Web浏览器）的一个延长支持版本。Mozilla Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 多款Mozilla产品存在安全绕过漏洞，攻击者可利用该漏洞绕过安全限制。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.mozilla.org/security/advisories/mfsa2026-01/

Reference
https://bugzilla.mozilla.org/show_bug.cgi?id=1999257
Impacted products
Name
['Mozilla Firefox <147', 'Mozilla Thunderbird <147', 'Mozilla Firefox ESR <115.32', 'Mozilla Firefox ESR <140.7', 'mozilla Thunderbird <140.7']
Show details on source website
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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-0877",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-0877"
    }
  },
  "description": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002Mozilla Firefox ESR\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684Firefox\uff08Web\u6d4f\u89c8\u5668\uff09\u7684\u4e00\u4e2a\u5ef6\u957f\u652f\u6301\u7248\u672c\u3002Mozilla Thunderbird\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u4eceMozilla Application Suite\u72ec\u7acb\u51fa\u6765\u7684\u7535\u5b50\u90ae\u4ef6\u5ba2\u6237\u7aef\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301IMAP\u3001POP\u90ae\u4ef6\u534f\u8bae\u4ee5\u53caHTML\u90ae\u4ef6\u683c\u5f0f\u3002\n\n\u591a\u6b3eMozilla\u4ea7\u54c1\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.mozilla.org/security/advisories/mfsa2026-01/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-11805",
  "openTime": "2026-02-28",
  "patchDescription": "Mozilla Firefox\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u5f00\u6e90Web\u6d4f\u89c8\u5668\u3002Mozilla Firefox ESR\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684Firefox\uff08Web\u6d4f\u89c8\u5668\uff09\u7684\u4e00\u4e2a\u5ef6\u957f\u652f\u6301\u7248\u672c\u3002Mozilla Thunderbird\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u4eceMozilla Application Suite\u72ec\u7acb\u51fa\u6765\u7684\u7535\u5b50\u90ae\u4ef6\u5ba2\u6237\u7aef\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301IMAP\u3001POP\u90ae\u4ef6\u534f\u8bae\u4ee5\u53caHTML\u90ae\u4ef6\u683c\u5f0f\u3002\r\n\r\n\u591a\u6b3eMozilla\u4ea7\u54c1\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "\u591a\u6b3eMozilla\u4ea7\u54c1\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2026-11805\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Mozilla Firefox \u003c147",
      "Mozilla Thunderbird \u003c147",
      "Mozilla Firefox ESR \u003c115.32",
      "Mozilla Firefox ESR \u003c140.7",
      "mozilla Thunderbird \u003c140.7"
    ]
  },
  "referenceLink": "https://bugzilla.mozilla.org/show_bug.cgi?id=1999257",
  "serverity": "\u9ad8",
  "submitTime": "2026-01-19",
  "title": "\u591a\u6b3eMozilla\u4ea7\u54c1\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2026-11805\uff09"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.