The vulnerability of the JIT component in Firefox and Firefox ESR web browsers, as well as in the Thunderbird email client, allows attackers to gain access to confidential data and compromise data integrity.
🗓️ 28 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 10 Views
| Reporter | Title | Published | Views | Family All 218 |
|---|---|---|---|---|
 | CVE-2026-8388 | 12 May 202612:36 | – | attackerkb |
 | AlmaLinux 9 : firefox (ALSA-2026:21378) | 3 Jun 202600:00 | – | nessus |
| AlmaLinux 10 : firefox (ALSA-2026:21380) | 29 May 202600:00 | – | nessus |
| AlmaLinux 9 : thunderbird (ALSA-2026:21381) | 29 May 202600:00 | – | nessus |
| AlmaLinux 8 : firefox (ALSA-2026:21382) | 29 May 202600:00 | – | nessus |
| AlmaLinux 10 : thunderbird (ALSA-2026:22325) | 3 Jun 202600:00 | – | nessus |
| AlmaLinux 8 : thunderbird (ALSA-2026:22643) | 3 Jun 202600:00 | – | nessus |
| Debian dla-4592 : firefox-esr - security update | 20 May 202600:00 | – | nessus |
| Debian dla-4594 : thunderbird - security update | 25 May 202600:00 | – | nessus |
| Debian dsa-6283 : firefox-esr - security update | 20 May 202600:00 | – | nessus |
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07 Sep 2026 00:00Current
6.9Medium risk
Vulners AI Score6.9
CVSS 26.4
CVSS 36.5
EPSS0.00244