CVE-2026-109714: Incorrect boundary conditions in the Layout component
Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/firefoxto a version that resolves this vulnerability.Fixed in 159.0-1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 158 - Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 158 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 158
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-109704
- CVE-2026-109705
- CVE-2026-109706
- CVE-2026-109707
- CVE-2026-109708
- CVE-2026-109709
- CVE-2026-109710
- CVE-2026-109711
- CVE-2026-109712
- CVE-2026-109713
- CVE-2026-109714
- CVE-2026-109715
- CVE-2026-109716
- CVE-2026-109717
- CVE-2026-109718
- CVE-2026-109719
- CVE-2026-109720
- CVE-2026-109721
- CVE-2026-109722
- CVE-2026-109723
- CVE-2026-109724
- CVE-2026-109725
- CVE-2026-109726
- CVE-2026-109727
- CVE-2026-109728
- CVE-2026-109729
- CVE-2026-109730
- CVE-2026-109731
- CVE-2026-109732
- CVE-2026-109733
- CVE-2026-109734
- CVE-2026-109735
- CVE-2026-109736
- CVE-2026-109737
- CVE-2026-109738
- CVE-2026-109739
- CVE-2026-109740
- CVE-2026-109741
- CVE-2026-109742
- CVE-2026-109743
- CVE-2026-109744
- CVE-2026-109745
- CVE-2026-109746
- CVE-2026-109747
- CVE-2026-109748
- CVE-2026-109749
- CVE-2026-109750
- CVE-2026-109751
- CVE-2026-109752
- CVE-2026-109753
- CVE-2026-109754
- CVE-2026-109755
- CVE-2026-109756
- CVE-2026-109757
- CVE-2026-109759
- CVE-2026-109760
- CVE-2026-109761
- CVE-2026-109762
- CVE-2026-109763
- CVE-2026-109764
- CVE-2026-109765
- CVE-2026-109766
- CVE-2026-109767
- CVE-2026-109768
- CVE-2026-109769
- CVE-2026-109770
- CVE-2026-109771
- CVE-2026-109772
- CVE-2026-109773
- CVE-2026-109774
- CVE-2026-109775
- CVE-2026-109776
- CVE-2026-109777
- CVE-2026-109778
- CVE-2026-109779
- CVE-2026-109780
- CVE-2026-109781
- CVE-2026-110247
- CVE-2026-110249
- CVE-2026-106016
Frequently Asked Questions
Which Firefox versions are affected?
The vulnerability was fixed in Firefox 158. The provided data does not identify the first affected version or affected Firefox release channels.
What can be done if updating is not immediately possible?
No workaround or mitigation is provided in the available data. Updating to Firefox 158 is the documented remediation.
How can I determine whether my installation is remediated?
Verify the installed Firefox version. Systems running Firefox 158 include the stated fix.