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23 September 2021

Vulnerabilities first published on this day (UTC), newest first.

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  • Medium 6.8

    Cisco IOS and IOS XE Software Link Layer Discovery Protocol Denial of Service Vulnerability

    A vulnerability in the Link Layer Discovery Protocol (LLDP) message parser of Cisco IOS Software and Cisco IOS XE Software could allow an attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability …

  • Medium 5.8

    Cisco IOS XE Software Protection Against Distributed Denial of Service Attacks Feature Vulnerability

    A vulnerability in the Protection Against Distributed Denial of Service Attacks feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct denial of service (DoS) attacks to or through the affected device. This vulnerability i…

  • Medium 5.8

    Cisco ASR 900 and ASR 920 Series Aggregation Services Routers Access Control List Bypass Vulnerability

    A vulnerability in the access control list (ACL) programming of Cisco ASR 900 and ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incorrect programming of har…

  • Medium 5.8

    Cisco IOS XE Software Zone-Based Policy Firewall ICMP and UDP Inspection Vulnerability

    A vulnerability in the Zone-Based Policy Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent the Zone-Based Policy Firewall from correctly classifying traffic. This vulnerability exists because ICMP and UDP res…