No advisories yet.
Solution
Upgrade Arc to v2.7.0 or later.
Workaround
Reinstall Npcap on the affected host with the "Restrict Npcap driver's access to Administrators only" option enabled.
| Link | Providers |
|---|---|
| https://security.nozominetworks.com/NN-2026:14-01 |
|
Tue, 11 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 11 Aug 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Windows installer deployed Npcap leaving its access restriction option at the insecure default value, so the driver was accessible to every local user of the host instead of being restricted to administrators only. A local user without administrative privileges could use the Npcap driver to capture the traffic reaching the host, which discloses information belonging both to the host and to other systems on the same network segment, and to send arbitrary raw packets on that segment. | |
| Title | Npcap driver installed without administrator-only access restriction on Windows in Arc before v2.7.0 | |
| First Time appeared |
Nozomi Networks
Nozomi Networks arc |
|
| Weaknesses | CWE-1188 | |
| CPEs | cpe:2.3:a:nozomi_networks:arc:*:*:*:*:*:windows:*:* | |
| Vendors & Products |
Nozomi Networks
Nozomi Networks arc |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: Nozomi
Published:
Updated: 2026-08-11T14:15:15.632Z
Reserved: 2026-03-24T16:06:11.950Z
Link: CVE-2026-33921
Updated: 2026-08-11T14:15:12.262Z
Status : Received
Published: 2026-08-11T10:17:11.963
Modified: 2026-08-11T15:17:29.110
Link: CVE-2026-33921
No data.
OpenCVE Enrichment
Updated: 2026-08-11T12:30:09Z