CVE-2021-29955
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I. Basic Information for CVE-2021-29955
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.
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 注入漏洞
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。 Firefox存在安全漏洞，该漏洞允许攻击者可利用该漏洞泄漏任意内存地址，也可能导致JIT类型混淆攻击。此漏洞影响Firefox ESR < 78.9和Firefox < 87。
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 ~ 78.9 | - | |
| Mozilla | Firefox | unspecified ~ 87 | - |
II. Public POCs for CVE-2021-29955
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://www.mozilla.org/security/advisories/mfsa2021-10/x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1692972x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2021-11/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-29955
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 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-2021-29955
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