Sandbox escape due to integer overflow in the Graphics component
Published Jan 13, 2026
8.8
HIGHCVSS 3.1
EPSS 0.66%
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.
Affected products
No data.
- < 115.32.0
- < 147.0
- ≥ 128.0 · < 140.7.0
- < 140.7.0
- < 147.0
No data.
Red Hat Enterprise Linux 10
firefox-0:140.7.0-1.el10_1
Fixed · RHSA-2026:2271
Red Hat Enterprise Linux 10
thunderbird-0:140.7.0-1.el10_1
Fixed · RHSA-2026:2286
Red Hat Enterprise Linux 10.0 Extended Update Support
firefox-0:140.7.0-1.el10_0
Fixed · RHSA-2026:2271
Red Hat Enterprise Linux 10.0 Extended Update Support
thunderbird-0:140.7.0-1.el10_0
Fixed · RHSA-2026:2286
Red Hat Enterprise Linux 7 Extended Lifecycle Support
firefox-0:140.7.0-1.el7_9
Fixed · RHSA-2026:2231
Red Hat Enterprise Linux 8
firefox-0:140.7.0-1.el8_10
Fixed · RHSA-2026:0667
Red Hat Enterprise Linux 8
thunderbird-0:140.7.0-1.el8_10
Fixed · RHSA-2026:2220
Red Hat Enterprise Linux 8.2 Advanced Update Support
firefox-0:140.7.0-1.el8_2
Fixed · RHSA-2026:2074
Red Hat Enterprise Linux 8.2 Advanced Update Support
thunderbird-0:140.7.0-1.el8_2
Fixed · RHSA-2026:1471
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
firefox-0:140.7.0-1.el8_4
Fixed · RHSA-2026:2073
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
thunderbird-0:140.7.0-1.el8_4
Fixed · RHSA-2026:1461
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
firefox-0:140.7.0-1.el8_4
Fixed · RHSA-2026:2073
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
thunderbird-0:140.7.0-1.el8_4
Fixed · RHSA-2026:1461
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
firefox-0:140.7.0-1.el8_6
Fixed · RHSA-2026:2070
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
thunderbird-0:140.7.0-1.el8_6
Fixed · RHSA-2026:1487
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
firefox-0:140.7.0-1.el8_6
Fixed · RHSA-2026:2070
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
thunderbird-0:140.7.0-1.el8_6
Fixed · RHSA-2026:1487
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
firefox-0:140.7.0-1.el8_6
Fixed · RHSA-2026:2070
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
thunderbird-0:140.7.0-1.el8_6
Fixed · RHSA-2026:1487
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
firefox-0:140.7.0-1.el8_8
Fixed · RHSA-2026:2069
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
thunderbird-0:140.7.0-1.el8_8
Fixed · RHSA-2026:1462
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
firefox-0:140.7.0-1.el8_8
Fixed · RHSA-2026:2069
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
thunderbird-0:140.7.0-1.el8_8
Fixed · RHSA-2026:1462
Red Hat Enterprise Linux 9
firefox-0:140.7.0-1.el9_7
Fixed · RHSA-2026:0694
Red Hat Enterprise Linux 9
thunderbird-0:140.7.0-1.el9_7
Fixed · RHSA-2026:0924
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
firefox-0:140.7.0-1.el9_0
Fixed · RHSA-2026:2047
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
thunderbird-0:140.7.0-1.el9_0
Fixed · RHSA-2026:1413
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
firefox-0:140.7.0-1.el9_2
Fixed · RHSA-2026:2044
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
thunderbird-0:140.7.0-1.el9_2
Fixed · RHSA-2026:1415
Red Hat Enterprise Linux 9.4 Extended Update Support
firefox-0:140.7.0-1.el9_4
Fixed · RHSA-2026:2041
Red Hat Enterprise Linux 9.4 Extended Update Support
thunderbird-0:140.7.0-1.el9_4
Fixed · RHSA-2026:1414
Red Hat Enterprise Linux 9.6 Extended Update Support
firefox-0:140.7.0-1.el9_6
Fixed · RHSA-2026:2043
Red Hat Enterprise Linux 9.6 Extended Update Support
thunderbird-0:140.7.0-2.el9_6
Fixed · RHSA-2026:1320
Red Hat Enterprise Linux 10
rhel10/firefox-flatpak
Affected
Red Hat Enterprise Linux 10
rhel10/thunderbird-flatpak
Affected
Red Hat Enterprise Linux 6
firefox
Out of support scope
Red Hat Enterprise Linux 6
thunderbird
Out of support scope
Red Hat Enterprise Linux 7
thunderbird
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | firefox-0:140.7.0-1.el10_1 | Fixed | RHSA-2026:2271 |
| Red Hat Enterprise Linux 10 | thunderbird-0:140.7.0-1.el10_1 | Fixed | RHSA-2026:2286 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | firefox-0:140.7.0-1.el10_0 | Fixed | RHSA-2026:2271 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | thunderbird-0:140.7.0-1.el10_0 | Fixed | RHSA-2026:2286 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | firefox-0:140.7.0-1.el7_9 | Fixed | RHSA-2026:2231 |
| Red Hat Enterprise Linux 8 | firefox-0:140.7.0-1.el8_10 | Fixed | RHSA-2026:0667 |
| Red Hat Enterprise Linux 8 | thunderbird-0:140.7.0-1.el8_10 | Fixed | RHSA-2026:2220 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | firefox-0:140.7.0-1.el8_2 | Fixed | RHSA-2026:2074 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | thunderbird-0:140.7.0-1.el8_2 | Fixed | RHSA-2026:1471 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | firefox-0:140.7.0-1.el8_4 | Fixed | RHSA-2026:2073 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | thunderbird-0:140.7.0-1.el8_4 | Fixed | RHSA-2026:1461 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | firefox-0:140.7.0-1.el8_4 | Fixed | RHSA-2026:2073 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | thunderbird-0:140.7.0-1.el8_4 | Fixed | RHSA-2026:1461 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | firefox-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:2070 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | thunderbird-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:1487 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | firefox-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:2070 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | thunderbird-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:1487 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | firefox-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:2070 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | thunderbird-0:140.7.0-1.el8_6 | Fixed | RHSA-2026:1487 |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | firefox-0:140.7.0-1.el8_8 | Fixed | RHSA-2026:2069 |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | thunderbird-0:140.7.0-1.el8_8 | Fixed | RHSA-2026:1462 |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | firefox-0:140.7.0-1.el8_8 | Fixed | RHSA-2026:2069 |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | thunderbird-0:140.7.0-1.el8_8 | Fixed | RHSA-2026:1462 |
| Red Hat Enterprise Linux 9 | firefox-0:140.7.0-1.el9_7 | Fixed | RHSA-2026:0694 |
| Red Hat Enterprise Linux 9 | thunderbird-0:140.7.0-1.el9_7 | Fixed | RHSA-2026:0924 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | firefox-0:140.7.0-1.el9_0 | Fixed | RHSA-2026:2047 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | thunderbird-0:140.7.0-1.el9_0 | Fixed | RHSA-2026:1413 |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | firefox-0:140.7.0-1.el9_2 | Fixed | RHSA-2026:2044 |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | thunderbird-0:140.7.0-1.el9_2 | Fixed | RHSA-2026:1415 |
| Red Hat Enterprise Linux 9.4 Extended Update Support | firefox-0:140.7.0-1.el9_4 | Fixed | RHSA-2026:2041 |
| Red Hat Enterprise Linux 9.4 Extended Update Support | thunderbird-0:140.7.0-1.el9_4 | Fixed | RHSA-2026:1414 |
| Red Hat Enterprise Linux 9.6 Extended Update Support | firefox-0:140.7.0-1.el9_6 | Fixed | RHSA-2026:2043 |
| Red Hat Enterprise Linux 9.6 Extended Update Support | thunderbird-0:140.7.0-2.el9_6 | Fixed | RHSA-2026:1320 |
| Red Hat Enterprise Linux 10 | rhel10/firefox-flatpak | Affected | n/a |
| Red Hat Enterprise Linux 10 | rhel10/thunderbird-flatpak | Affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
References (37)
- https://access.redhat.com/errata/RHSA-2026:0667
- https://access.redhat.com/errata/RHSA-2026:0694
- https://access.redhat.com/errata/RHSA-2026:0924
- https://access.redhat.com/errata/RHSA-2026:1320
- https://access.redhat.com/errata/RHSA-2026:1413
- https://access.redhat.com/errata/RHSA-2026:1414
- https://access.redhat.com/errata/RHSA-2026:1415
- https://access.redhat.com/errata/RHSA-2026:1461
- https://access.redhat.com/errata/RHSA-2026:1462
- https://access.redhat.com/errata/RHSA-2026:1471
- https://access.redhat.com/errata/RHSA-2026:1487
- https://access.redhat.com/errata/RHSA-2026:2041
- https://access.redhat.com/errata/RHSA-2026:2043
- https://access.redhat.com/errata/RHSA-2026:2044
- https://access.redhat.com/errata/RHSA-2026:2047
- https://access.redhat.com/errata/RHSA-2026:2069
- https://access.redhat.com/errata/RHSA-2026:2070
- https://access.redhat.com/errata/RHSA-2026:2073
- https://access.redhat.com/errata/RHSA-2026:2074
- https://access.redhat.com/errata/RHSA-2026:2220
- https://access.redhat.com/errata/RHSA-2026:2231
- https://access.redhat.com/errata/RHSA-2026:2271
- https://access.redhat.com/errata/RHSA-2026:2286
- https://access.redhat.com/security/cve/CVE-2026-0880 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=2005014 Permissions Required
- https://bugzilla.redhat.com/show_bug.cgi?id=2428975 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-2086 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-0880
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0880.json
- https://www.cve.org/CVERecord?id=CVE-2026-0880
- https://www.mozilla.org/security/advisories/mfsa2026-01/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-02/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-03/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-03/#CVE-2026-0880
- https://www.mozilla.org/security/advisories/mfsa2026-04/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-05/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-05/#CVE-2026-0880
Change history (0)
No recorded changes yet.