Summary
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um erhöhte Rechte zu erlangen, beliebigen Code auszuführen, Spoofing-Angriffe durchzuführen, einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen preiszugeben oder andere nicht spezifizierte Angriffe durchzuführen.
Product
Firefox ist ein Open Source Web Browser.
ESR ist die Variante mit verlängertem Support.
Thunderbird ist ein Open Source E-Mail Client.
Vulnerabilities 8
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High 8.1
Memory safety bugs fixed in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9
Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.…
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High 8.1
Memory safety bugs fixed in Firefox 137 and Thunderbird 137
Memory safety bugs present in Firefox 136 and Thunderbird 136. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefo…
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High 7.7
Opening local .url files could lead to another file being opened
After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 137 and Thunderbi…
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High 7.4
Leaking file descriptors from the fork server
Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
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High 7.3
URL Bar Spoofing via non-BMP Unicode characters
A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
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Medium 6.5
Use-after-free triggered by XSLTProcessor
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
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Medium 6.5
JIT optimization bug with different stack slot sizes
An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
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Medium 5.3
Tab title disclosure across pages when using AI chatbot
By first using the AI chatbot in one tab and later activating it in another tab, the document title of the previous tab would leak into the chat prompt. This vulnerability was fixed in Firefox 137.
Revision history
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#18
Neue Updates von Ubuntu aufgenommen
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#17
Neue Updates von Gentoo aufgenommen
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#16
Neue Updates von Oracle Linux aufgenommen
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#15
Neue Updates von Red Hat aufgenommen
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#14
Neue Updates von Gentoo aufgenommen
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#13
Neue Updates von Amazon aufgenommen
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#12
Neue Updates von Amazon aufgenommen
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#11
Neue Updates von Fedora aufgenommen
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#10
Neue Updates von Oracle Linux aufgenommen
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#9
Neue Updates von Red Hat aufgenommen
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#8
Neue Updates von Oracle Linux aufgenommen
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#7
Neue Updates von Red Hat aufgenommen
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#6
Neue Updates von openSUSE aufgenommen
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#5
Neue Updates von Fedora und SUSE aufgenommen
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#4
Neue Updates von Red Hat und openSUSE aufgenommen
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#3
Neue Updates von Debian, Red Hat, Oracle Linux und SUSE aufgenommen
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#2
Neue Updates von Debian, Red Hat und SUSE aufgenommen
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#1
Initiale Fassung
References
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Mozilla Foundation Security Advisory vom 2025-04-01
https://www.mozilla.org/en-US/security/advisories/mfsa2025-20/
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Mozilla Foundation Security Advisory vom 2025-04-01
https://www.mozilla.org/en-US/security/advisories/mfsa2025-21/
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Mozilla Foundation Security Advisory vom 2025-04-01
https://www.mozilla.org/en-US/security/advisories/mfsa2025-22/
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Mozilla Foundation Security Advisory vom 2025-04-01
https://www.mozilla.org/en-US/security/advisories/mfsa2025-23/
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Mozilla Foundation Security Advisory vom 2025-04-01
https://www.mozilla.org/en-US/security/advisories/mfsa2025-24/
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Debian Security Advisory DLA-4110 vom 2025-04-02
https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html
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Red Hat Security Advisory RHSA-2025:3556 vom 2025-04-03
https://access.redhat.com/errata/RHSA-2025:3556
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Debian Security Advisory DLA-4109 vom 2025-04-02
https://lists.debian.org/debian-lts-announce/2025/04/msg00004.html
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SUSE Security Update SUSE-SU-2025:1103-1 vom 2025-04-02
https://lists.suse.com/pipermail/sle-security-updates/2025-April/020638.html
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Debian Security Advisory DSA-5889 vom 2025-04-02
https://lists.debian.org/debian-security-announce/2025/msg00051.html
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Red Hat Security Advisory RHSA-2025:3581 vom 2025-04-03
https://access.redhat.com/errata/RHSA-2025:3581
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Red Hat Security Advisory RHSA-2025:3587 vom 2025-04-03
https://access.redhat.com/errata/RHSA-2025:3587
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Red Hat Security Advisory RHSA-2025:3589 vom 2025-04-03
https://access.redhat.com/errata/RHSA-2025:3589
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Debian Security Advisory DSA-5891 vom 2025-04-03
https://lists.debian.org/debian-security-announce/2025/msg00053.html
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Red Hat Security Advisory RHSA-2025:3582 vom 2025-04-04
https://rhn.redhat.com/errata/RHSA-2025:3582.html
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Oracle Linux Security Advisory ELSA-2025-3556 vom 2025-04-03
https://linux.oracle.com/errata/ELSA-2025-3556.html
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Red Hat Security Advisory RHSA-2025:3590 vom 2025-04-04
https://rhn.redhat.com/errata/RHSA-2025:3590.html
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SUSE Security Update SUSE-SU-2025:1138-1 vom 2025-04-03
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/FUHR5XEZ42TGL635SUANMQGKDABQBRQM/
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Oracle Linux Security Advisory ELSA-2025-3582 vom 2025-04-03
https://linux.oracle.com/errata/ELSA-2025-3582.html
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Red Hat Security Advisory RHSA-2025:3623 vom 2025-04-07
https://access.redhat.com/errata/RHSA-2025:3623
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Red Hat Security Advisory RHSA-2025:3628 vom 2025-04-07
https://access.redhat.com/errata/RHSA-2025:3628
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Red Hat Security Advisory RHSA-2025:3620 vom 2025-04-07
https://access.redhat.com/errata/RHSA-2025:3620
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Red Hat Security Advisory RHSA-2025:3621 vom 2025-04-07
https://access.redhat.com/errata/RHSA-2025:3621
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openSUSE Security Update OPENSUSE-SU-2025:14961-1 vom 2025-04-04
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/3WBRCQJYFKUAGSQ5SHW67JST3P5FSU4D/
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openSUSE Security Update OPENSUSE-SU-2025:14966-1 vom 2025-04-05
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/PLEINOYG527XRVX4H6KEXEEA4YBKPHTQ/
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Fedora Security Advisory FEDORA-2025-9A271CCFB3 vom 2025-04-07
https://bodhi.fedoraproject.org/updates/FEDORA-2025-9a271ccfb3
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Fedora Security Advisory FEDORA-2025-4841D72CAF vom 2025-04-07
https://bodhi.fedoraproject.org/updates/FEDORA-2025-4841d72caf
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SUSE Security Update SUSE-SU-2025:1157-1 vom 2025-04-07
https://lists.suse.com/pipermail/sle-security-updates/2025-April/020663.html
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openSUSE Security Update OPENSUSE-SU-2025:14975-1 vom 2025-04-09
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/DFCJUQ2K4CXOQIEYDJ6TH5U5DJENK6I6/
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openSUSE Security Update OPENSUSE-SU-2025:14971-1 vom 2025-04-09
https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/ETNHULRLMLJHZBIZIPSURXJNK2JZWDQP/
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Red Hat Security Advisory RHSA-2025:4027 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4027
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Red Hat Security Advisory RHSA-2025:4029 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4029
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Red Hat Security Advisory RHSA-2025:4026 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4026
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Red Hat Security Advisory RHSA-2025:4031 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4031
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Red Hat Security Advisory RHSA-2025:4032 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4032
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Red Hat Security Advisory RHSA-2025:4030 vom 2025-04-21
https://access.redhat.com/errata/RHSA-2025:4030
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Oracle Linux Security Advisory ELSA-2025-3628 vom 2025-04-22
https://linux.oracle.com/errata/ELSA-2025-3628.html
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Red Hat Security Advisory RHSA-2025:4028 vom 2025-04-23
https://access.redhat.com/errata/RHSA-2025:4028
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Red Hat Security Advisory RHSA-2025:4169 vom 2025-04-24
https://access.redhat.com/errata/RHSA-2025:4169
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Red Hat Security Advisory RHSA-2025:4170 vom 2025-04-24
https://access.redhat.com/errata/RHSA-2025:4170
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Oracle Linux Security Advisory ELSA-2025-4169 vom 2025-04-24
https://linux.oracle.com/errata/ELSA-2025-4169.html
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Oracle Linux Security Advisory ELSA-2025-4170 vom 2025-04-24
https://linux.oracle.com/errata/ELSA-2025-4170.html
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Fedora Security Advisory FEDORA-2025-013F8D6631 vom 2025-04-29
https://bodhi.fedoraproject.org/updates/FEDORA-2025-013f8d6631
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Amazon Linux Security Advisory ALASFIREFOX-2025-037 vom 2025-04-29
https://alas.aws.amazon.com/AL2/ALASFIREFOX-2025-037.html
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Amazon Linux Security Advisory ALAS-2025-2840 vom 2025-04-30
https://alas.aws.amazon.com/AL2/ALAS-2025-2840.html
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Gentoo Linux Security Advisory GLSA-202505-03 vom 2025-05-12
https://security.gentoo.org/glsa/202505-03
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Gentoo Linux Security Advisory GLSA-202505-02 vom 2025-05-12
https://security.gentoo.org/glsa/202505-02
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Red Hat Security Advisory RHSA-2025:7493 vom 2025-05-13
https://access.redhat.com/errata/RHSA-2025:7493
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Red Hat Security Advisory RHSA-2025:7491 vom 2025-05-13
https://access.redhat.com/errata/RHSA-2025:7491
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Oracle Linux Security Advisory ELSA-2025-7491 vom 2025-07-01
https://linux.oracle.com/errata/ELSA-2025-7491.html
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Oracle Linux Security Advisory ELSA-2025-7493 vom 2025-07-01
https://linux.oracle.com/errata/ELSA-2025-7493.html
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Gentoo Linux Security Advisory GLSA-202509-02 vom 2025-09-18
https://security.gentoo.org/glsa/202509-02
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Ubuntu Security Notice USN-7991-1 vom 2026-02-03
https://ubuntu.com/security/notices/USN-7991-1