CVE-2021-1241

HIGH

Cisco SD-WAN - Unauthenticated Denial of Service

Title source: llm
STIX 2.1

Description

Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

References (1)

Core 1
Core References

Scores

CVSS v3 8.6
EPSS 0.0060
EPSS Percentile 69.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-119
Status published
Products (14)
cisco/catalyst_sd-wan_manager
cisco/ios_xe_sd-wan
cisco/sd-wan_firmware 18.3.5
cisco/sd-wan_firmware 18.3.8
cisco/sd-wan_firmware 18.4.1
cisco/sd-wan_firmware 18.4.4
cisco/sd-wan_firmware 18.4.5
cisco/sd-wan_firmware 19.2.0
cisco/sd-wan_firmware 19.2.1
cisco/sd-wan_firmware 19.2.2
... and 4 more
Published Jan 20, 2021
Tracked Since Feb 18, 2026