Mozilla Firefox/Thunderbird/Firefox ESR on Linux Graphics Drivers memory corruption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.9 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic was found in Mozilla Firefox, Thunderbird and Firefox ESR on Linux. The affected element is an unknown function of the component Graphics Drivers. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2019-11693. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.
Details
A vulnerability classified as problematic has been found in Mozilla Firefox, Thunderbird and Firefox ESR on Linux (Web Browser) (version unknown). Affected is an unknown function of the component Graphics Drivers. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. CVE summarizes:
The bufferdata function in WebGL is vulnerable to a buffer overflow with specific graphics drivers on Linux. This could result in malicious content freezing a tab or triggering a potentially exploitable crash. *Note: this issue only occurs on Linux. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
The weakness was shared 07/23/2019. This vulnerability is traded as CVE-2019-11693 since 05/03/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/26/2025).
The commercial vulnerability scanner Qualys is able to test this issue with plugin 371797 (Mozilla Firefox Multiple Security Vulnerabilities (MFSA 2019-13,MFSA2019-14)).
Upgrading eliminates this vulnerability.
The entries VDB-138475, VDB-138473 and VDB-138472 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.1VulDB Meta Temp Score: 6.9
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
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 |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
05/03/2019 🔍07/23/2019 🔍
07/23/2019 🔍
11/26/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: mozilla.org
Status: Confirmed
CVE: CVE-2019-11693 (🔍)
GCVE (CVE): GCVE-0-2019-11693
GCVE (VulDB): GCVE-100-138474
See also: 🔍
Entry
Created: 07/23/2019 21:33Updated: 11/26/2025 09:54
Changes: 07/23/2019 21:33 (39), 07/09/2020 18:48 (18), 11/06/2023 08:08 (4), 11/06/2023 08:13 (1), 06/06/2024 02:47 (16), 11/26/2025 09:54 (4)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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