CVE-2026-0880 Details
Description
Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
A sandbox escape vulnerability has been identified in Mozilla Firefox. This issue arises from an integer overflow in the Graphics component, leading to incorrect boundary conditions. The vulnerability is present in Firefox versions prior to 147, as well as in Firefox ESR versions prior to 115.32 and 140.7.
Users can upgrade to Firefox 147 or Firefox ESR 115.32 or 140.7 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 115.32.0 < 147.0 >= 128.0, < 140.7.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 140.7.0 < 147.0 |
CPE
Remediation
| |
Change History
9 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Jan 22, 2026 | Initial Analysis | [email protected] |
| Jan 15, 2026 | CVE Modified | [email protected] |
| Jan 13, 2026 | CVE Modified | CISA-ADP |
| Jan 13, 2026 | New CVE Received | [email protected] |