CVE-2026-12298
EUVD-2026-3708916.06.2026, 13:16
Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources
(CNA/ADP records, vendor advisories, Enginsight analysis).
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:140.12.0-1.el10_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:140.12.0-1.el10_0 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:140.12.0-1.el7_9 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8 | 0:140.12.0-1.el8_10 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:140.12.0-1.el8_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:140.12.0-1.el8_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:140.12.0-1.el8_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 0:140.12.0-1.el8_6 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:140.12.0-1.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:140.12.0-1.el8_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9 | 0:140.12.0-1.el9_8 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:140.12.0-1.el9_2 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:140.12.0-1.el9_4 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:140.12.0-1.el9_6 ≤ 𝑥 < * | ADP |
| mozilla | firefox | 𝑥 < 152.0 | CNA |
| mozilla | firefox_esr | 140.0 ≤ 𝑥 < 140.12.0 | CNA |
| mozilla | thunderbird | 𝑥 < 152.0.0 | CNA |
| mozilla | thunderbird_esr | 140.0 ≤ 𝑥 < 140.12.0 | CNA |
Debian Releases
Debian Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||||
| firefox-esr |
| ||||||||||||
| thunderbird |
|
Ubuntu Releases
Ubuntu Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
| ||||||||||||
| thunderbird |
| ||||||||||||
| mozjs38 |
| ||||||||||||
| mozjs52 |
| ||||||||||||
| mozjs68 |
| ||||||||||||
| mozjs78 |
| ||||||||||||
| mozjs91 |
| ||||||||||||
| mozjs102 |
| ||||||||||||
| mozjs115 |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MozillaFirefox |
| ||||||||||||||||||||||||
| MozillaFirefox-devel |
| ||||||||||||||||||||||||
| MozillaFirefox-translations-common |
| ||||||||||||||||||||||||
| MozillaFirefox-translations-other |
| ||||||||||||||||||||||||
| MozillaThunderbird |
| ||||||||||||||||||||||||
| MozillaThunderbird-translations-common |
| ||||||||||||||||||||||||
| MozillaThunderbird-translations-other |
|
Red Hat Enterprise Linux Releases
Amazon Linux Releases
Common Weakness Enumeration
- CWE-125 - Out-of-bounds ReadThe software reads data past the end, or before the beginning, of the intended buffer.
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
References