CRITICALCVSS v3.1 9.6Vulnerability

CVE-2026-124859

Sandbox escape due to incorrect boundary conditions in the Storage: Cache API component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

Properties

Severity
CRITICAL
Nvd fetched at
2026-11-10T23:33:48.924589+00:00
Cvss severity
CRITICAL
Cvss score
9.6
Retrieved at
2026-11-10T23:34:23+00:00
Score
9.6
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-124859
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
First seen by Signal
2026-11-10T15:26:48+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published at
2026-11-10T14:17:18.210
Last modified
2026-11-10T21:19:09.913

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Related research

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CVE-2026-124859 (CVSS v3.1 9.6) — Ninja Signal Threat Intelligence | Ninja Signal