CVE-2026-33921

medium Red Hat
CVSS v3 Base Score
5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS Score
0.1%
Exploitation probability in 30 days
Top 97% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Published: August 11, 2026 (26 days ago)
Last Modified: August 11, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Npcap driver. The Windows installer for Arc deployed Npcap with insecure default access restrictions, allowing any local user, not just administrators, to access the driver. This vulnerability enables a local user without administrative privileges to capture network traffic, leading to information disclosure from the host and other systems on the same network segment. Additionally, the user can send arbitrary raw packets on that segment.

CWE

CWE-1188

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 security.nozominetworks.com