The vulnerability of the “Copy as” function in browsers such as Mozilla Firefox, Firefox ESR, and the email client Thunderbird on Windows operating systems allows a hacker to execute arbitrary code.
🗓️ 01 Jun 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 9 Views
| Reporter | Title | Published | Views | Family All 173 |
|---|---|---|---|---|
 | Amazon Linux 2023 : firefox (ALAS2023-2025-996) | 12 Jun 202500:00 | – | nessus |
| Amazon Linux 2 : thunderbird (ALAS-2025-2873) | 12 Jun 202500:00 | – | nessus |
| Amazon Linux 2 : firefox (ALASFIREFOX-2025-039) | 11 Jun 202500:00 | – | nessus |
| Fedora 42 : firefox (2025-34badbe9b9) | 10 Jun 202500:00 | – | nessus |
| Fedora 41 : thunderbird (2025-5bf1989d48) | 1 Jun 202500:00 | – | nessus |
| Fedora 42 : thunderbird (2025-a52491bdd9) | 3 Jul 202500:00 | – | nessus |
| Mozilla Firefox ESR < 115.24 | 27 May 202500:00 | – | nessus |
| Mozilla Firefox ESR < 128.11 | 27 May 202500:00 | – | nessus |
| Mozilla Firefox < 139.0 | 27 May 202500:00 | – | nessus |
| Mozilla Thunderbird < 128.11 | 27 May 202500:00 | – | nessus |
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02 Oct 2025 00:00Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.3
CVSS 34.8
EPSS0.00177