Medium severity5.3NVD Advisory· Published Feb 17, 2021· Updated Jun 17, 2026
CVE-2021-1378
CVE-2021-1378
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.
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Affected products
3cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*range: >=21.9.0,<=21.19.10
- (no CPE)
- Range: n/a
Patches
Vulnerability mechanics
References
1News mentions
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