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CVE-2026-75874

🗓️ 18 Aug 2026 12:23:35Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 2 Media mentions👁 77 Views

Firefox Remote Settings Client sandbox escape fixed in Firefox 154.

Related
Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-75874
18 Aug 202612:23
alpinelinux
cgr
Chainguard
CVE-2026-75874 vulnerabilities
26 Aug 202608:26
cgr
circl
Circl
CVE-2026-75874
18 Aug 202620:30
circl
cvelist
Cvelist
CVE-2026-75874 Sandbox escape in the Remote Settings Client component
18 Aug 202612:23
cvelist
debian
Debian
[SECURITY] [DLA 4770-1] firefox-esr security update
4 Sep 202608:03
debian
debian
Debian
[SECURITY] [DSA 6481-1] firefox-esr security update
2 Sep 202620:59
debian
debian
Debian
[SECURITY] [DSA 6483-1] thunderbird security update
4 Sep 202618:04
debian
debiancve
Debian CVE
CVE-2026-75874
18 Aug 202612:23
debiancve
nessus
Tenable Nessus
Debian dla-4770 : firefox-esr - security update
4 Sep 202600:00
nessus
nessus
Tenable Nessus
Debian dsa-6481 : firefox-esr - security update
2 Sep 202600:00
nessus
Rows per page
NVD
Node
OR
mozillafirefoxRange<154.0.0
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.40",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.15",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.2",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "154",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.15",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153.2",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "154",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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01 Sep 2026 22:17Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.110
EPSS0.00455
SSVC
77