The vulnerability in the Firefox web browser and Thunderbird email client relates to the issue of operations going beyond the buffer boundaries in memory, allowing attackers to trigger a service failure.
🗓️ 10 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 43 |
|---|---|---|---|---|
 | CVE-2026-12326 | 16 Jun 202611:52 | – | attackerkb |
 | CVE-2026-12326 | 16 Jun 202611:52 | – | alpinelinux |
 | Astra Linux – Vulnerability in Firefox | 5 Aug 202612:44 | – | astralinux |
 | CVE-2026-12326 vulnerabilities | 1 Jul 202614:17 | – | cgr |
 | CVE-2026-12326 | 16 Jun 202614:29 | – | circl |
 | CVE-2026-12326 | 16 Jun 202611:52 | – | cve |
 | CVE-2026-12326 Memory safety bugs fixed in Firefox 152 and Thunderbird 152 | 16 Jun 202611:52 | – | cvelist |
 | CVE-2026-12326 | 16 Jun 202611:52 | – | debiancve |
 | EUVD-2026-37072 | 16 Jun 202611:52 | – | euvd |
 | Fedora 43 : firefox / nss (2026-1c873954fa) | 20 Jun 202600:00 | – | nessus |
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10 Aug 2026 00:00Current
7.9High risk
Vulners AI Score7.9
CVSS 27.6
CVSS 38.1
EPSS0.00363