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The vulnerability of the Mozilla Firefox browser and the Thunderbird email client relates to the execution of operations beyond the buffer in memory, allowing an attacker to execute arbitrary code.

🗓️ 28 Apr 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 4 Views

Firefox and Thunderbird vulnerability permits remote code execution by exceeding memory buffer boundaries.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
FreeBSD		Mozilla -- memory corruption
1 Apr 202500:00
–freebsd
ATTACKERKB		CVE-2025-3034
1 Apr 202513:15
–attackerkb
AlpineLinux		CVE-2025-3034
1 Apr 202513:15
–alpinelinux
AstraLinux		Astra Linux – Vulnerability in Firefox
16 Jun 202511:28
–astralinux
Chainguard		CVE-2025-3034 vulnerabilities
7 Jan 202601:29
–cgr
Circl		CVE-2025-3034
1 Apr 202513:00
–circl
CNNVD		Mozilla Firefox和Mozilla Thunderbird 安全漏洞
1 Apr 202500:00
–cnnvd
CVE		CVE-2025-3034
1 Apr 202512:29
–cve
Cvelist		CVE-2025-3034 Memory safety bugs fixed in Firefox 137 and Thunderbird 137
1 Apr 202512:29
–cvelist
Debian CVE		CVE-2025-3034
1 Apr 202512:29
–debiancve
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novellsuse_openstack_cloudMatch7
OR
novellsuse_openstack_cloudMatch8
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novellsuse_manager_retail_branch_serverMatch4.0
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novellsuse_manager_serverMatch4.0
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novellsuse_manager_proxyMatch4.2
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novellsuse_manager_serverMatch4.2
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novellsuse_enterprise_storageMatch7
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novellsuse_manager_serverMatch4.3
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novellsuse_enterprise_storageMatch7.1
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novellsuse_linux_enterprise_high_performance_computingMatch15
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mozillafirefoxRange<137
OR
mozillathunderbirdRange<137
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novellopensuse_leapMatch15.5
OR
novellsuse_linux_enterprise_server_for_sap_applicationsMatch15
OR
novellsuse_linux_enterprise_serverMatch15-ltss
OR
novellopensuse_leapMatch15.3
OR
novellopensuse_leapMatch15.4
OR
novellsuse_linux_enterprise_serverMatch15
OR
novellopensuse_leapMatch15.6

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04 Mar 2026 00:00Current
8.2High risk
Vulners AI Score8.2
CVSS 27.6
CVSS 38.1
EPSS0.00414
Mozilla FirefoxMozilla Thunderbirdbuffer overflowremote code executionarbitrary code
4