8.8

CVE-2023-3600: mozilla firefox Use After Free

CVSS: 8.8v3.1HighModified
AliasesSUSE-SU-2023:2958-1SUSE-SU-2023:2959-1SUSE-SU-2023:2960-1
Published 12-07-2023Last modified 18-12-2025
Open JSON

Vulnerability summary

CVE-2023-3600 is a high (CVSS 8.8) Use After Free vulnerability in mozilla firefox. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.3% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 20 · Related 3
MGASA-2023-0266OPENSUSE-SU-2024:14572-1RHSA-2023:5426RHSA-2023:5427RHSA-2023:5428RHSA-2023:5429

Timeline

  1. 12-07-2023
    PublishedVulnerability first disclosed.
  2. 18-12-2025
    Last modifiedVulnerability information updated.

Description

During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.63% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse24 products
  • MozillaFirefox&distro=SUSE Enterprise Storage 7< 115.0.2-150200.152.96.1
  • MozillaFirefox&distro=SUSE Enterprise Storage 7.1< 115.0.2-150200.152.96.1
  • MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 115.0.2-150000.150.94.1
  • MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 115.0.2-150200.152.96.1
  • MozillaFirefox&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS< 115.0.2-150200.152.96.1
Mozilla3 products
Opensuse3 products
  • MozillaFirefox&distro=openSUSE Leap 15.4< 115.0.2-150200.152.96.1
  • MozillaFirefox&distro=openSUSE Leap 15.5< 115.0.2-150200.152.96.1
  • MozillaFirefox&distro=openSUSE Tumbleweed< 115.0.2-1.1
Ubuntu2 products
  • firefox< 115.0.2+build1-0ubuntu0.20.04.1
  • thunderbird< 1:115.3.1+build1-0ubuntu0.20.04.1 | < 1:115.3.1+build1-0ubuntu0.22.04.2

4 vendors · 32 products

References

13 links
Show all 13 references