Mozilla Thunderbird up to 115.6 Devtool Extension privileges management

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Mozilla Thunderbird up to 115.6. Affected is an unknown function of the component Devtool Extension Handler. The manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2024-0751. No exploit is available. You should upgrade the affected component.
Details
A vulnerability was found in Mozilla Thunderbird up to 115.6 (Mail Client Software). It has been rated as problematic. This issue affects some unknown functionality of the component Devtool Extension Handler. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
A malicious devtools extension could have been used to escalate privileges. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.
The weakness was published 01/23/2024. It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2024-0751 since 01/19/2024. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/19/2025). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 239868 (TencentOS Server 3: thunderbird (TSSA-2024:0054)), which helps to determine the existence of the flaw in a target environment.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (239868). Be aware that VulDB is the high quality source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.1VulDB Meta Temp Score: 7.1
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Privileges managementCWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 239868
Nessus Name: TencentOS Server 3: thunderbird (TSSA-2024:0054)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
01/19/2024 🔍01/23/2024 🔍
01/23/2024 🔍
06/19/2025 🔍
Sources
Vendor: mozilla.orgAdvisory: DLA 3720-1
Status: Confirmed
CVE: CVE-2024-0751 (🔍)
GCVE (CVE): GCVE-0-2024-0751
GCVE (VulDB): GCVE-100-251855
Entry
Created: 01/23/2024 15:14Updated: 06/19/2025 04:13
Changes: 01/23/2024 15:14 (38), 02/17/2024 09:50 (1), 02/17/2024 09:51 (12), 06/19/2025 04:13 (17)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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