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CVE-2026-6755

🗓️ 22 Apr 2026 01:14:21Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com

A mitigation bypass in Firefox's DOM postMessage component per Mozilla advisory.

Related
Refs
ReporterTitlePublishedViews
Family
FreeBSD
Mozilla -- Mitigation bypass
21 Apr 202600:00
freebsd
ATTACKERKB
CVE-2026-6755
21 Apr 202612:40
attackerkb
AlpineLinux
CVE-2026-6755
21 Apr 202612:40
alpinelinux
Circl
CVE-2026-6755
21 Apr 202620:00
circl
CNNVD
Mozilla Firefox和Mozilla Thunderbird 安全漏洞
21 Apr 202600:00
cnnvd
CVE
CVE-2026-6755
21 Apr 202612:40
cve
Cvelist
CVE-2026-6755 Mitigation bypass in the DOM: postMessage component
21 Apr 202612:40
cvelist
Debian CVE
CVE-2026-6755
21 Apr 202612:40
debiancve
EUVD
EUVD-2026-24096
21 Apr 202615:32
euvd
Tenable Nessus
Fedora 42 : firefox / nss (2026-69538c9f7e)
28 Apr 202600:00
nessus
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23 Apr 2026 16:52Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.1 - 6.5
EPSS0.00023
SSVC
0