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CVE-2026-12297 Sandbox escape due to incorrect boundary conditions in the Networking component

🗓️ 16 Jun 2026 11:52:30Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

Sandbox escape from incorrect boundary conditions in the Networking component; fixed in Firefox 152 and ESR 140.12, 115.37.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-12297
16 Jun 202611:52
cve
Debian CVE
CVE-2026-12297
16 Jun 202611:52
debiancve
EUVD
EUVD-2026-37088
16 Jun 202611:52
euvd
Mozilla
Security Vulnerabilities fixed in Firefox 152 — Mozilla
16 Jun 202600:00
mozilla
Mozilla
Security Vulnerabilities fixed in Firefox ESR 140.12 — Mozilla
16 Jun 202600:00
mozilla
Mozilla
Security Vulnerabilities fixed in Firefox ESR 115.37 — Mozilla
16 Jun 202600:00
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 152 — Mozilla
16 Jun 202600:00
mozilla
Mozilla
Security Vulnerabilities fixed in Thunderbird 140.12 — Mozilla
16 Jun 202600:00
mozilla
NVD
CVE-2026-12297
16 Jun 202613:16
nvd
Positive Technologies
PT-2026-49666
16 Jun 202600:00
ptsecurity
Rows per page
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "115.37",
        "lessThanOrEqual": "115.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "140.12",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "152",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.12",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "152",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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