CVE-2021-29958
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I. Basic Information for CVE-2021-29958
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
When a download was initiated, the client did not check whether it was in normal or private browsing mode, which led to private mode cookies being shared in normal browsing mode. This vulnerability affects Firefox for iOS < 34.
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
github firefox-ios 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
github firefox-ios是github开源的一个应用程序。提供了适用于 iOS 的 Firefox。 github firefox-ios 存在信息泄露漏洞，该漏洞源于应用程序在私有浏览时输出了过多的数据。客户端启动下载时，没有检查是正常浏览模式还是隐私浏览模式，导致隐私模式cookies在正常浏览模式下被共享。该漏洞允许远程攻击者访问敏感信息。以下产品和版本受到影响：Firefox for iOS版本:8.0、9.0、10.0、11.0、12.0、13.0、14.0、15.0、16.0、17
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 for iOS | unspecified ~ 34 | - |
II. Public POCs for CVE-2021-29958
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.mozilla.org/security/advisories/mfsa2021-25/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-29958
Same Patch Batch · Mozilla · 2021-06-24 · 37 CVEs total
| CVE-2021-23999 | Mozilla Firefox 安全漏洞 | |
| CVE-2021-29948 | Mozilla Thunderbird 竞争条件问题漏洞 | |
| CVE-2021-29947 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-29946 | Mozilla Firefox 输入验证错误漏洞 | |
| CVE-2021-29945 | Mozilla Thunderbird 安全漏洞 | |
| CVE-2021-29944 | Mozilla Firefox 和 Thunderbird 跨站脚本漏洞 | |
| CVE-2021-24002 | Mozilla Thunderbird 注入漏洞 | |
| CVE-2021-24001 | Mozilla Firefox 权限许可和访问控制问题漏洞 | |
| CVE-2021-24000 | Mozilla Firefox 竞争条件问题漏洞 | |
| CVE-2021-29949 | Mozilla Thunderbird 代码问题漏洞 | |
| CVE-2021-23998 | Mozilla Firefox 数据伪造问题漏洞 | |
| CVE-2021-23997 | Mozilla Firefox 资源管理错误漏洞 | |
| CVE-2021-23996 | Mozilla Firefox和Mozilla Thunderbird 安全漏洞 | |
| CVE-2021-23995 | Mozilla Thunderbird 资源管理错误漏洞 | |
| CVE-2021-23994 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-23993 | Mozilla Thunderbird 数据伪造问题漏洞 | |
| CVE-2021-23992 | Mozilla Thunderbird 数据伪造问题漏洞 | |
| CVE-2021-23991 | Mozilla Thunderbird 安全漏洞 | |
| CVE-2021-29959 | Mozilla Firefox权限许可和访问控制问题漏洞 | |
| CVE-2021-29967 | Mozilla Firefox 缓冲区错误漏洞 |
Showing top 20 of 37 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Firefox for iOS
- CVE-2026-2634
Spoofed web content presented under trusted domains using sc - CVE-2026-2032
Interrupted page loads in new tabs could allow website spoof - CVE-2025-14744
Filename spoofing via Unicode Right-to-Left Override in Fire - CVE-2025-10859
Data stored in cookies for non-HTML content while browsing I - CVE-2025-55029
Malicious scripts could spam popups for denial of service at
Same vendor: Mozilla
- CVE-2026-8093
Memory safety bugs fixed in Thunderbird 150.0.2 - CVE-2026-8094
Other issue in the WebRTC component - CVE-2026-8092
Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thu - CVE-2026-8091
Incorrect boundary conditions in the Audio/Video: Playback c - CVE-2026-8090
Use-after-free in the DOM: Networking component
V. Comments for CVE-2021-29958
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