CNVD-2026-11800

Vulnerability from cnvd - Published: 2026-02-28
VLAI
Title
Mozilla Firefox和Mozilla Firefox ESR缓冲区溢出漏洞（CNVD-2026-11800）
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 Firefox和Mozilla Firefox ESR存在缓冲区溢出漏洞，该漏洞是由于Graphics:CanvasWebGL组件中的边界条件不正确造成的。攻击者可利用该漏洞在系统上执行任意代码或导致应用程序崩溃。
Severity
高
Patch Name
Mozilla Firefox和Mozilla Firefox ESR缓冲区溢出漏洞（CNVD-2026-11800）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 Firefox和Mozilla Firefox ESR存在缓冲区溢出漏洞，该漏洞是由于Graphics:CanvasWebGL组件中的边界条件不正确造成的。攻击者可利用该漏洞在系统上执行任意代码或导致应用程序崩溃。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=2003989
Impacted products
Name
['Mozilla Firefox <147', 'Mozilla Firefox ESR <140.7']
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-0878",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-0878"
    }
  },
  "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\u3002\n\nMozilla Firefox\u548cMozilla Firefox ESR\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8eGraphics:CanvasWebGL\u7ec4\u4ef6\u4e2d\u7684\u8fb9\u754c\u6761\u4ef6\u4e0d\u6b63\u786e\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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-2026-11800",
  "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\u3002\r\n\r\nMozilla Firefox\u548cMozilla Firefox ESR\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8eGraphics:CanvasWebGL\u7ec4\u4ef6\u4e2d\u7684\u8fb9\u754c\u6761\u4ef6\u4e0d\u6b63\u786e\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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": "Mozilla Firefox\u548cMozilla Firefox ESR\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-11800\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Mozilla Firefox \u003c147",
      "Mozilla Firefox ESR \u003c140.7"
    ]
  },
  "referenceLink": "https://bugzilla.mozilla.org/show_bug.cgi?id=2003989",
  "serverity": "\u9ad8",
  "submitTime": "2026-01-19",
  "title": "Mozilla Firefox\u548cMozilla Firefox ESR\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-11800\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.