CVE-2026-16378

HIGH

MEDIUM Priority: 0.03 BB Relevance: 75/100

Published: 2026-07-21 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Network Low Complexity No Auth No Interaction Conf. Impact

AV: Network

AC: Low

PR: None

UI: None

S: Unchanged

C: High

I: None

A: None

Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

CWE-20

Vendor	Product	Version
mozilla	firefox	< 153.0.0
mozilla	thunderbird	< 153.0

Vendor Advisory

Vendor Advisory

Permissions Required

75 / 100

✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

7.5 / 10.0 v3.1

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

0.42%

Raw Score 0.004170

Percentile 36.0%

Date 2026-10-29

2026-10-29

0.00417

2026-10-28

0.00417

nvd ref →