PT-2026-33968 · Mozilla · Firefox+1

Yuki Umemura · CVE-2026-6782 · Published 2026-04-21 · Updated 2026-04-27

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150

Description Information disclosure occurs in the IP Protection component.

Recommendations Update Firefox to version 150. Update Thunderbird to version 150.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-6782

OPENSUSE-SU-2026:10626-1

Affected Products

Firefox

Thunderbird

References · 54

• https://mozilla.org/security/advisories/mfsa2026-33 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10626-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-6782 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-30 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-6782 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6782 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-30/#CVE-2026-6782 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-33 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-30 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6782 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-6782 · Security Note
• https://suse.com/security/cve/CVE-2026-6777 · Note
• https://suse.com/security/cve/CVE-2026-6746 · Note
• https://suse.com/security/cve/CVE-2026-6769 · Note
• https://suse.com/security/cve/CVE-2026-6784 · Note