Medium severity6.8NVD Advisory· Published Aug 17, 2020· Updated Jun 17, 2026
CVE-2020-3500
CVE-2020-3500
Description
A vulnerability in the IPv6 implementation of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to an affected device with the goal of reaching the vulnerable section of the input buffer. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
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Affected products
3cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*range: <21.18.3
- (no CPE)
- Range: n/a
Patches
Vulnerability mechanics
References
1News mentions
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