Unrated
Memory safety bug fixed in Thunderbird 152
Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
Announced Group revision 1
Original source ↗CVE-2026-12298
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-12298
Firefox
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Thunderbird
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Mozilla",
"product": "Firefox",
"versions": [
{
"status": "unaffected",
"version": "140.12",
"versionType": "rpm",
"lessThanOrEqual": "140.*"
},
{
"status": "unaffected",
"version": "152",
"versionType": "rpm",
"lessThanOrEqual": "*"
}
]
},
{
"vendor": "Mozilla",
"product": "Thunderbird",
"versions": [
{
"status": "unaffected",
"version": "140.12",
"versionType": "rpm",
"lessThanOrEqual": "140.*"
},
{
"status": "unaffected",
"version": "152",
"versionType": "rpm",
"lessThanOrEqual": "*"
}
]
}
]- Related CVEs
- CVE-2026-12298
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #49044 · Revision 1
- Added to Heist Feed
- Publisher date