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CVE-2025-6427

🗓️ 24 Jun 2025 13:15:23Reported by Alpine Linux Development TeamType 
alpinelinux
 alpinelinux
🔗 security.alpinelinux.org👁 28 Views

Attacker bypassed connect-src via subdocuments, hiding connections from Devtools Network tab; affects Firefox and Thunderbird before 140.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
firefox -- multiple vulnerabilities
24 Jun 202500:00
–freebsd
attackerkb
attackerkb
CVE-2025-6427
24 Jun 202512:28
–attackerkb
astralinux
AstraLinux
Astra Linux – Vulnerability in Firefox
16 Jun 202511:28
–astralinux
bdu_fstec
BDU FSTEC
Mozilla Firefox Content Security Policy
27 Jun 202500:00
–bdu_fstec
cgr
Chainguard
CVE-2025-6427 vulnerabilities
1 Jul 202614:16
–cgr
circl
Circl
CVE-2025-6427
25 Jun 202514:51
–circl
cnnvd
CNNVD
Mozilla Firefox security vulnerabilities
24 Jun 202500:00
–cnnvd
cnvd
CNVD
Mozilla Firefox Security Bypass Vulnerability (CNVD-2025-15499)
4 Jul 202500:00
–cnvd
cve
CVE
CVE-2025-6427
24 Jun 202512:28
–cve
cvelist
Cvelist
CVE-2025-6427 connect-src Content Security Policy restriction could be bypassed
24 Jun 202512:28
–cvelist
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Alpineedge-communitynoarchfirefox133.0-r0UNKNOWN
Alpineedge-communitynoarchfirefox134.0-r0UNKNOWN
Alpineedge-communitynoarchfirefox134.0.1-r0UNKNOWN
Alpineedge-communitynoarchfirefox134.0.1-r1UNKNOWN
Alpineedge-communitynoarchfirefox135.0-r0UNKNOWN
Alpineedge-communitynoarchfirefox135.0.1-r0UNKNOWN
Alpineedge-communitynoarchfirefox136.0-r0UNKNOWN
Alpineedge-communitynoarchfirefox136.0.2-r0UNKNOWN
Alpineedge-communitynoarchfirefox136.0.3-r0UNKNOWN
Alpineedge-communitynoarchfirefox136.0.4-r0UNKNOWN
Rows per page

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30 Oct 2025 16:13Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.19.1
EPSS0.00368
SSVC
28