CVE-2019-11693

Name: CVE-2019-11693
Creator: NVD / NIST
Published: 2019-07-23T14:15:14.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.41%

Last modified Jun 17, 2026

CVE-2019-11693 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.41% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.41%

82.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 60.7.0
Mozilla	Firefox	< 67.0
Mozilla	Thunderbird	< 60.7.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1532525Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1532525Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory

Timeline

Published: Jul 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11693?

How severe is CVE-2019-11693?

Severity scoring for CVE-2019-11693 is pending analysis. The EPSS model estimates a 2.41% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11693?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11693?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST