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The vulnerability in the “Copy as cURL Handler” component of the Mozilla Firefox ESR browser and the Mozilla Thunderbird email client allows a hacker to execute arbitrary code.
🗓️ 29 Aug 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 118 |
|---|---|---|---|---|
 | CVE-2025-4084 | 29 Apr 202514:15 | – | alpinelinux |
 | CVE-2025-4084 | 29 Apr 202515:50 | – | circl |
 | Mozilla Firefox ESR 安全漏洞 | 29 Apr 202500:00 | – | cnnvd |
 | CVE-2025-4084 | 29 Apr 202513:13 | – | cve |
 | CVE-2025-4084 Potential local code execution in "copy as cURL" command | 29 Apr 202513:13 | – | cvelist |
 | [SECURITY] [DLA 4167-1] thunderbird security update | 19 May 202512:33 | – | debian |
 | CVE-2025-4084 | 29 Apr 202513:13 | – | debiancve |
 | Debian dla-4167 : thunderbird - security update | 19 May 202500:00 | – | nessus |
| Fedora 41 : thunderbird (2025-23fe8c5b7e) | 7 May 202500:00 | – | nessus |
| Fedora 40 : thunderbird (2025-6e3f18b2c0) | 9 May 202500:00 | – | nessus |
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04 Mar 2026 00:00Current
CVSS 35.7
CVSS 26.8
EPSS0.00347