CVE-2026-109710
Received Received - Intake

Use-after-free in Firefox Graphics Text Component

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Mozilla Corporation

Description
Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-19
AI Q&A
2026-10-13
EPSS Evaluated
2026-10-18
NVD
CVE-2026-109710
EUVD
EUVD-2026-98636

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox to 158 (inc)
mozilla firefox_esr to 115.43 (inc)
mozilla firefox_esr to 153.5 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a use-after-free vulnerability in Firefox's Graphics Text component. Use-after-free means the software continues to use memory after it has been freed, which can lead to crashes, data corruption, or arbitrary code execution.

Detection Guidance

Detection requires checking Firefox version. If using Firefox <158, Firefox ESR <115.43, or Firefox ESR <153.5, the system is vulnerable. Run 'firefox --version' to check. Update to patched versions immediately.

Impact Analysis

An attacker could exploit this to crash your browser, run malicious code on your device, or access sensitive data. It may allow remote code execution if combined with other vulnerabilities.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with GDPR, HIPAA, or other standards. The vulnerability involves a use-after-free in Firefox's Graphics: Text component, which could potentially lead to memory corruption or arbitrary code execution. Such issues may indirectly affect compliance by compromising data integrity or confidentiality, but no explicit details are provided.

Mitigation Strategies

Update Firefox to version 158 or later, Firefox ESR to version 115.43 or later, or Firefox ESR to version 153.5 or later to address the use-after-free vulnerability in the Graphics: Text component.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-109710. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart