CVE-2020-3363
mediumPriorität · verfolgen · 35EPSS 0.018 · 79. PerzentilEURUUSEPSS · bewertet 2026-10-28
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches 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 through an affected device. A successful exploit could allow the attacker to cause an unexpected reboot of the switch, leading to a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco Small Business 250 Series Smart Switches Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–8.6
SSVC
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schwächen
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betroffene Produkte (120)
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Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-sbss-ipv6-dos-3bLk6vACisco Small Business Smart and Managed Switches Denial of Service Vulnerability2020-08-05csaf · cisco_csafUS
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches 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 through an affected device. A successful exploit could allow the attacker to cause an unexpected reboot of the switch, leading to a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected. Cisco has released software updates that address this vulnerability for devices that have not reached the end of software maintenance. There are no workarounds that address this vulnerability.
auch bekannt als (4)
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quellen
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Referenzen (7)
Externe Belege — Patches, Meldungen, Analysen.
- http://www.nsfocus.net/vulndb/48347cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-3363cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-3bLk6vAcnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.2698.2/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.2698/cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-3bLk6vAenisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-3bLk6vAVendor Advisorynvd
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