CVE-2021-1378

MEDIUM

Cisco StarOS 21.9.0-21.19.9 - Unauthenticated Denial of Service via SSH Service

Title source: llm
STIX 2.1

Description

A vulnerability in the SSH service of the Cisco StarOS operating system could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service from receiving any traffic, which would lead to a DoS condition on the affected device.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0015
EPSS Percentile 35.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (1)
cisco/staros 21.9.0 - 21.19.10
Published Feb 17, 2021
Tracked Since Feb 18, 2026