CVE-2026-33921 (GCVE-0-2026-33921)
Vulnerability from cvelistv5 – Published: 2026-08-11 09:48 – Updated: 2026-08-11 14:15
VLAI
EPSS
VEX
Title
Npcap driver installed without administrator-only access restriction on Windows in Arc before v2.7.0
Summary
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.
Severity
5.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 14:15 UTC
CWE
- CWE-1188 - Initialization of a resource with an insecure default
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Nozomi Networks | Arc |
Affected:
0 , < 2.7.0
(semver)
cpe:2.3:a:nozomi_networks:arc:*:*:*:*:*:windows:*:* |
Date Public
2026-08-11 07:00
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