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CVE-2019-11693

Published: Jul 23, 2019Updated: Nov 25, 2025 Sources: CVE List NVD BDUCWE-787
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
2.4%
Top 18.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

ThunderbirdMozilla
On-premDesktop App
Communications / email-server-client
FirefoxMozilla
On-premDesktop App
Consumer Software / browser
Firefox ESRMozilla
Desktop App
Consumer Software / browser
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Альт Линукс СПТАО «ИВК»
On-prem
Operating Systems / linux-distro
mozillaoss-projectUSConsumer Softwareaka mozilla corp.
red hat inc.commercialUSOperating Systemsaka red hat
ао «ивк»commercialRUOperating Systemsaka ivk
and 7 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.mozilla.org/security/advisories/mfsa2019-13/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2019-15/
mozilla.org
https://www.mozilla.org/security/advisories/mfsa2019-14/
mozilla.org
and 8 more references View all →

Timeline

Published
Jul 23, 2019
Last Updated
Nov 25, 2025

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