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CVE-2026-16411— Memory safety bugs fixed in Firefox 153

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Mozilla基金会开源的一款Web浏览器。 Mozilla Firefox 153之前版本存在缓冲区错误漏洞，该漏洞源于内存缓冲区错误，可能导致内存损坏，攻击者可能利用这些漏洞执行任意代码。

AI Predicted 7.8 Difficulty: Easy EPSS 0.32% · P24

Affected Version Matrix 2

VendorProduct Version RangeStatus
Mozilla Firefox 153≤ * unaffected
Mozilla Thunderbird 153≤ * unaffected
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I. Basic Information for CVE-2026-16411

Vulnerability Information
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Vulnerability Title
Memory safety bugs fixed in Firefox 153
Source: CVE Program / CVE List V5
Vulnerability Description
Memory safety bugs present in Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
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Mozilla基金会开源的一款Web浏览器。 Mozilla Firefox 153之前版本存在缓冲区错误漏洞，该漏洞源于内存缓冲区错误，可能导致内存损坏，攻击者可能利用这些漏洞执行任意代码。
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 153 ~ * -
Mozilla Thunderbird 153 ~ * -

II. Public POCs for CVE-2026-16411

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III. Intelligence Information for CVE-2026-16411

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Patches & Fixes for CVE-2026-16411 (2)

Vendor Advisories for CVE-2026-16411 (2)

Other References for CVE-2026-16411 (1)

Same Patch Batch · Mozilla · 2026-07-21 · 64 CVEs total

CVE-2026-16374 Information disclosure in the Framework component in DevTools
CVE-2026-16364 Incorrect boundary conditions in the Audio/Video: Playback component
CVE-2026-16362 Use-after-free in the WebRTC: Audio/Video component
CVE-2026-16352 Sandbox escape due to use-after-free in the Disability Access APIs component
CVE-2026-16363 JIT miscompilation in the JavaScript: WebAssembly component
CVE-2026-16356 Sandbox escape due to use-after-free in the Disability Access APIs component
CVE-2026-16370 Mitigation bypass in the DOM: Networking component
CVE-2026-16371 Privilege escalation in the DOM: Navigation component
CVE-2026-16372 Privilege escalation in the DOM: Content Processes component
CVE-2026-16373 Information disclosure in the Privacy component in Firefox for Android
CVE-2026-16357 Incorrect boundary conditions in the Graphics component
CVE-2026-16375 Site isolation issue in the Networking: HTTP component
CVE-2026-16376 Denial-of-service in the Graphics: WebGPU component
CVE-2026-16377 Mitigation bypass in the PDF Viewer component
CVE-2026-16378 Other issue in the DOM: Copy & Paste and Drag & Drop component
CVE-2026-16379 Privilege escalation in the DOM: Content Processes component
CVE-2026-16358 Site isolation issue in the Graphics: WebRender component
CVE-2026-16381 Same-origin policy bypass in the Networking: DNS component
CVE-2026-16380 Mitigation bypass in the Networking component
CVE-2026-16382 Mitigation bypass in the DOM: Service Workers component

Showing top 20 of 64 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2026-16411

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