Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
Metrics
Affected Vendors & Products
References
History
Thu, 03 Sep 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mozilla thunderbird
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| CPEs | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
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| Vendors & Products |
Mozilla thunderbird
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Tue, 01 Sep 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Internally found bugs present in Firefox 154, Firefox ESR 153.1, Firefox ESR 140.14 and Firefox ESR 115.39. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2. | Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2. |
| Title | Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40 | Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15 |
| References |
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| Metrics |
ssvc
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Tue, 01 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Tue, 01 Sep 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Mozilla
Mozilla firefox |
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| Vendors & Products |
Mozilla
Mozilla firefox |
Tue, 01 Sep 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-119 |
Tue, 01 Sep 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Internally found bugs present in Firefox 154, Firefox ESR 153.1, Firefox ESR 140.14 and Firefox ESR 115.39. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, and Firefox ESR 153.2. | |
| Title | Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40 | |
| References |
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Status: PUBLISHED
Assigner: mozilla
Published: 2026-09-01T12:18:43.808Z
Updated: 2026-09-02T03:55:49.167Z
Reserved: 2026-09-01T07:26:02.411Z
Link: CVE-2026-84145
Updated: 2026-09-01T15:04:39.691Z
Status : Analyzed
Published: 2026-09-01T13:20:08.673
Modified: 2026-09-03T12:49:55.293
Link: CVE-2026-84145
No data.