Mozilla Thunderbird ESR (ms) 128.9.0
Mozilla Thunderbird ESR (ms) 128.9.0, released April 1, 2025, fixes 2 CVEs in Mozilla Thunderbird ESR (ms). None of them is reported as exploited. Patch Radar priority: High. The latest Mozilla Thunderbird ESR (ms) is 153.7.0, which also fixes every one of these CVEs.
Superseded. The latest Mozilla Thunderbird ESR (ms) is 153.7.0, which also fixes every CVE on this page. Install that instead.
Priority of the 2 CVEs
Applies to
| Product | Version |
|---|---|
| Mozilla Thunderbird ESR (ms) | 128.9.0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-3028 | Use-after-free triggered by XSLTProcessor | 8.8 | 0.0087 | None reported |
| High | CVE-2025-3029 | URL Bar Spoofing via non-BMP Unicode characters | 8.8 | 0.0036 | None reported |
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