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CVE-2026-8959 Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component
| Reporter | Title | Published | Views | Family All 137 |
|---|---|---|---|---|
 | CVE-2026-8959 | 19 May 202612:29 | – | attackerkb |
 | AlmaLinux 9 : thunderbird (ALSA-2026:21381) | 29 May 202600:00 | – | nessus |
| AlmaLinux 10 : thunderbird (ALSA-2026:22325) | 3 Jun 202600:00 | – | nessus |
| AlmaLinux 8 : thunderbird (ALSA-2026:22643) | 3 Jun 202600:00 | – | nessus |
| Fedora 42 : firefox / nss (2026-7f6ee801e2) | 25 May 202600:00 | – | nessus |
| Fedora 43 : firefox / nss (2026-cd20332935) | 20 May 202600:00 | – | nessus |
| Fedora 44 : firefox (2026-f3409cf313) | 20 May 202600:00 | – | nessus |
| Mozilla Firefox ESR < 140.11 | 19 May 202600:00 | – | nessus |
| Mozilla Firefox < 151.0 | 19 May 202600:00 | – | nessus |
| Mozilla Thunderbird < 140.11 | 19 May 202600:00 | – | nessus |
10
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"status": "unaffected",
"version": "140.11",
"lessThanOrEqual": "140.*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "151",
"lessThanOrEqual": "*",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"status": "unaffected",
"version": "140.11",
"lessThanOrEqual": "140.*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "151",
"lessThanOrEqual": "*",
"versionType": "rpm"
}
]
}
]Data
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19 May 2026 17:10Current
EPSS0.00417