CVE-2026-84118
🔶 mediumSummary
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
CVSS Score
5.4
Medium
EPSS Score
0.2
Exploit Probability
Published Date
2026-09-01
First Seen: 2026-09-03
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 22.2% of all 364,858 vulnerabilities in our database.
#283,815
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 1, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
x0e
SSVC data provided by
CISA
Last Modified
2026-09-02
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE IDs (Weakness Types)