CVE-2021-38500
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I. Basic Information for CVE-2021-38500
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
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 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 存在缓冲区错误漏洞，该漏洞源于软件中存在的内存安全漏洞，其中一些bug显示了内存损坏，攻击者可以利用该漏洞进行任意代码执行。
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 | Thunderbird | unspecified ~ 78.15 | - | |
| Mozilla | Firefox ESR | unspecified ~ 91.2 | - | |
| Mozilla | Firefox | unspecified ~ 93 | - |
II. Public POCs for CVE-2021-38500
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://www.mozilla.org/security/advisories/mfsa2021-44/x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2021-45/x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2021-46/x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2021-43/x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2021-47/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-38500
Same Patch Batch · Mozilla · 2021-11-03 · 14 CVEs total
| CVE-2021-38502 | Mozilla Thunderbird 安全漏洞 | |
| CVE-2021-38501 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-38499 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-38498 | Mozilla Firefox 资源管理错误漏洞 | |
| CVE-2021-38497 | Mozilla Firefox 访问控制错误漏洞 | |
| CVE-2021-38496 | Mozilla Firefox MessageTask 资源管理错误漏洞 | |
| CVE-2021-38495 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-38494 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-38493 | Mozilla Firefox 缓冲区错误漏洞 | |
| CVE-2021-38492 | Mozilla Firefox 输入验证错误漏洞 | |
| CVE-2021-38491 | Mozilla Firefox 权限许可和访问控制问题漏洞 | |
| CVE-2021-29993 | Mozilla Firefox 权限许可和访问控制问题漏洞 | |
| CVE-2021-29991 | Mozilla Firefox和Mozilla Thunderbird 安全漏洞 |
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-2021-38500
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