| ID |
CVE-2021-34767
|
| Sažetak |
A vulnerability in IPv6 traffic processing of Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a Layer 2 (L2) loop in a configured VLAN, resulting in a denial of service (DoS) condition for that VLAN. The vulnerability is due to a logic error when processing specific link-local IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that would flow inbound through the wired interface of an affected device. A successful exploit could allow the attacker to cause traffic drops in the affected VLAN, thus triggering the DoS condition. |
| Reference |
|
| CVSS |
| Base: | 3.3 |
| Impact: | 2.9 |
| Exploitability: | 6.5 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| ADJACENT_NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
NONE |
PARTIAL |
|
| CVSS vektor |
AV:A/AC:L/Au:N/C:N/I:N/A:P |
| Zadnje važnije ažuriranje |
30-10-2025 - 21:14 |
| Objavljeno |
23-09-2021 - 03:15 |
