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The vulnerability in Mozilla Firefox, Mozilla Firefox ESR, and the email client Mozilla Thunderbird arises from performing operations beyond the buffer boundaries in memory, allowing an attacker to execute arbitrary code.

🗓️ 29 Aug 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec
🔗 bdu.fstec.ru👁 1 Views

A memory boundary overrun in Firefox and Thunderbird allows remote code execution.

Related
Detection
Refs
Vulners
Node
OR
mozillafirefox_esrRange<115.27
OR
mozillafirefox_esrRange<128.14
OROROR
mozillathunderbirdRange<128.14
OR

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07 Jul 2026 00:00Current
7.8High risk
Vulners AI Score7.8
CVSS 27.6
CVSS 38.1
EPSS0.0044
1