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The vulnerability in the HTTP Header Handler component of Mozilla Firefox and Firefox ESR browsers allows attackers to perform cross-site scripting (XSS) attacks.
🗓️ 25 Jun 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 374 |
|---|---|---|---|---|
 | CVE-2025-6430 | 24 Jun 202512:28 | – | attackerkb |
 | Amazon Linux 2023 : firefox (ALAS2023-2025-1055) | 10 Jul 202500:00 | – | nessus |
| Amazon Linux 2 : firefox (ALASFIREFOX-2025-040) | 10 Jul 202500:00 | – | nessus |
| AlmaLinux 9 : firefox (ALSA-2025:10072) | 1 Jul 202500:00 | – | nessus |
| AlmaLinux 10 : firefox (ALSA-2025:10073) | 9 Oct 202500:00 | – | nessus |
| AlmaLinux 8 : firefox (ALSA-2025:10074) | 2 Jul 202500:00 | – | nessus |
| AlmaLinux 8 : thunderbird (ALSA-2025:10246) | 8 Jul 202500:00 | – | nessus |
| Debian dla-4231 : firefox-esr - security update | 26 Jun 202500:00 | – | nessus |
| Debian dla-4239 : thunderbird - security update | 11 Jul 202500:00 | – | nessus |
| Debian dsa-5950 : firefox-esr - security update | 26 Jun 202500:00 | – | nessus |
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04 Mar 2026 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 36.1
CVSS 26.4
EPSS0.0037