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CVE-2020-12421

Quick assessment

Affected
Mozilla Firefox ESR
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla Thunderbird 68.10.0之前版本、Firefox ESR 68.10之前版本和Firefox 78之前版本中存在安全漏洞，该漏洞源于在进行A

AI Predicted 5.9 Difficulty: Trivial EPSS 1.84% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-12421

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
多款Mozilla产品信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox等都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。Mozilla Thunderbird是一套从Mozilla Application Suite独立出来的电子邮件客户端软件。 Mozilla Thunderbird 68.10.0之前版本、Firefox ESR 68.10之前版本和Firefox 78之前版本中存在安全漏洞，该漏洞源于在进行A
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox ESR unspecified ~ 68.10 -
Mozilla Firefox unspecified ~ 78 -
Mozilla Thunderbird unspecified ~ 68.10.0 -

II. Public POCs for CVE-2020-12421

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III. Intelligence Information for CVE-2020-12421

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Vendor Advisories for CVE-2020-12421 (7)

Mailing List Discussions for CVE-2020-12421 (4)

Same Patch Batch · Mozilla · 2020-07-09 · 26 CVEs total

CVE-2020-12404 Mozilla Firefox 信息泄露漏洞
CVE-2020-12414 Mozilla Firefox 安全漏洞
CVE-2020-12407 Mozilla Firefox 信息泄露漏洞
CVE-2020-12402 Amazon Linux AMI 加密问题漏洞
CVE-2020-12399 Mozilla Network Security Services 安全漏洞
CVE-2020-12412 Mozilla Firefox 安全漏洞
CVE-2020-12408 Mozilla Firefox 注入漏洞
CVE-2020-12411 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-12409 Mozilla Firefox 安全漏洞
CVE-2020-12398 Mozilla Thunderbird 安全漏洞
CVE-2020-12410 Mozilla Firefox和Firefox ESR 缓冲区错误漏洞
CVE-2020-12405 多款Mozilla产品资源管理错误漏洞
CVE-2020-12406 多款Mozilla产品数据伪造问题漏洞
CVE-2018-12371 多款Mozilla产品Skia库输入验证错误漏洞
CVE-2020-12416 Mozilla Firefox 资源管理错误漏洞
CVE-2020-12425 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-12423 Mozilla Firefox 代码问题漏洞
CVE-2020-12422 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-12420 多款Mozilla产品资源管理错误漏洞
CVE-2020-12419 多款Mozilla产品资源管理错误漏洞

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Firefox ESR
Same vendor: Mozilla

V. Comments for CVE-2020-12421

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