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CVE-2020-26971

Quick assessment

Affected
Mozilla Firefox
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是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 中存在缓冲区错误漏洞。该漏洞源于用户提供的某些位元值没有得到适当的限制，导致某些视频驱动程序上的堆缓冲区溢出。以下产品及版本受到影响：Firefox c 84、Thnderbird < 78.6和Firefox ESR < 78.6。

AI Predicted 6.6 Difficulty: Moderate EPSS 1.88% · P78

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2020-26971

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
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
Mozilla Firefox 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 中存在缓冲区错误漏洞。该漏洞源于用户提供的某些位元值没有得到适当的限制，导致某些视频驱动程序上的堆缓冲区溢出。以下产品及版本受到影响：Firefox c 84、Thnderbird < 78.6和Firefox ESR < 78.6。
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 unspecified ~ 84 -
Mozilla Thunderbird unspecified ~ 78.6 -
Mozilla Firefox ESR unspecified ~ 78.6 -

II. Public POCs for CVE-2020-26971

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III. Intelligence Information for CVE-2020-26971

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Vendor Advisories for CVE-2020-26971 (4)

Same Patch Batch · Mozilla · 2021-01-07 · 13 CVEs total

CVE-2020-26972 Mozilla Firefox 资源管理错误漏洞
CVE-2020-26973 Mozilla Firefox 安全漏洞
CVE-2020-26974 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-26975 Mozilla Firefox 安全漏洞
CVE-2020-26976 Mozilla Firefox 安全漏洞
CVE-2020-26977 Mozilla Firefox 安全漏洞
CVE-2020-26978 Mozilla Firefox 信息泄露漏洞
CVE-2020-26979 Mozilla Firefox 输入验证错误漏洞
CVE-2020-35111 Mozilla Firefox 安全漏洞
CVE-2020-35112 Mozilla Firefox 安全漏洞
CVE-2020-35113 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-35114 Mozilla Firefox 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2020-26971

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