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CVE-2026-4728— Spoofing issue in the Privacy: Anti-Tracking component

EPSS 0.01% · P1
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I. Basic Information for CVE-2026-4728

Vulnerability Information
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Vulnerability Title
Spoofing issue in the Privacy: Anti-Tracking component
Source: NVD (National Vulnerability Database)
Vulnerability Description
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mozilla Firefox和Mozilla Thunderbird 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox和Mozilla Thunderbird都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Thunderbird是一套从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。 Mozilla Firefox 149之前版本和Mozilla Thunderbird 149之前版本存在安全漏洞，该漏洞源于隐私，反跟踪组件存在欺骗问题。
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

VendorProductAffected VersionsCPESubscribe
MozillaFirefox 149 ~ * -
MozillaThunderbird 149 ~ * -

II. Public POCs for CVE-2026-4728

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III. Intelligence Information for CVE-2026-4728

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Same Patch Batch · Mozilla · 2026-03-24 · 47 CVEs total

CVE-2026-4714Incorrect boundary conditions in the Audio/Video component
CVE-2026-4717Privilege escalation in the Netmonitor component
CVE-2026-4726Denial-of-service in the XML component
CVE-2026-4719Incorrect boundary conditions in the Graphics: Text component
CVE-2026-4729Memory safety bugs fixed in Firefox 149 and Thunderbird 149
CVE-2026-4721Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9,
CVE-2026-3889Spoofing issue in Thunderbird
CVE-2026-4371Out of bounds read in IMAP parsing
CVE-2026-4720Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thun
CVE-2026-4715Uninitialized memory in the Graphics: Canvas2D component
CVE-2026-4716Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component
CVE-2026-4713Incorrect boundary conditions in the Graphics component
CVE-2026-4725Sandbox escape due to use-after-free in the Graphics: Canvas2D component
CVE-2026-4712Information disclosure in the Widget: Cocoa component
CVE-2026-4710Incorrect boundary conditions in the Audio/Video component
CVE-2026-4711Use-after-free in the Widget: Cocoa component
CVE-2026-4709Incorrect boundary conditions in the Audio/Video: GMP component
CVE-2026-4708Incorrect boundary conditions in the Graphics component
CVE-2026-4707Incorrect boundary conditions in the Graphics: Canvas2D component
CVE-2026-4706Incorrect boundary conditions in the Graphics: Canvas2D component

Showing top 20 of 47 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-4728

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