CVE-2023-5170

Name: CVE-2023-5170
Creator: NVD / NIST
Published: 2023-09-27T15:19:42.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2023-5170 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. In canvas rendering, a compromised content process could have caused a surface to change unexpectedly, leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox escape if the correct data was leaked. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

In canvas rendering, a compromised content process could have caused a surface to change unexpectedly, leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox escape if the correct data was leaked. This vulnerability affects Firefox < 118.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS Probability

0.59%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 118.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1846686Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-41/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1846686Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202401-10
https://www.mozilla.org/security/advisories/mfsa2023-41/Vendor Advisory

Timeline

Published: Sep 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5170?

How severe is CVE-2023-5170?

CVE-2023-5170 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5170?

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-2023-5170?

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

Scan your code now

Source: NVD / NIST