CVE-2026-2780

medium Red Hat
CVSS v3 Base Score
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score
0.0%
Exploitation probability in 30 days
Top 87% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Published: February 24, 2026 (79 days ago)
Last Modified: February 24, 2026
Vendor: Red Hat
Fix Available: ✓ Yes

Description

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat Enterprise Linux 8Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 www.mozilla.org 🔗 www.mozilla.org