Total
455 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-3509 | 1 Cisco | 2 Cbr-8, Ios Xe | 2020-10-08 | 7.8 HIGH | 8.6 HIGH |
| A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when DHCP version 4 (DHCPv4) messages are parsed. An attacker could exploit this vulnerability by sending a malicious DHCPv4 message to or through a WAN interface of an affected device. A successful exploit could allow the attacker to cause a reload of the affected device. Note: On Cisco cBR-8 Converged Broadband Routers, all of the following are considered WAN interfaces: 10 Gbps Ethernet interfaces 100 Gbps Ethernet interfaces Port channel interfaces that include multiple 10 and/or 100 Gbps Ethernet interfaces | |||||
| CVE-2020-3480 | 1 Cisco | 26 Asr 1001-hx, Asr 1001-x, Asr 1002-hx and 23 more | 2020-10-08 | 7.8 HIGH | 8.6 HIGH |
| Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the device. An attacker could exploit these vulnerabilities by sending a certain sequence of traffic patterns through the device. A successful exploit could allow the attacker to cause the device to reload or stop forwarding traffic through the firewall, resulting in a denial of service. For more information about these vulnerabilities, see the Details section of this advisory. | |||||
| CVE-2020-3511 | 1 Cisco | 51 Asr1001-hx, Asr1001-hx-rf, Asr1001-x and 48 more | 2020-10-08 | 6.1 MEDIUM | 7.4 HIGH |
| A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the ISDN Q.931 messages are processed. An attacker could exploit this vulnerability by sending a malicious ISDN Q.931 message to an affected device. A successful exploit could allow the attacker to cause the process to crash, resulting in a reload of the affected device. | |||||
| CVE-2020-3510 | 1 Cisco | 51 Catalyst C9200-24p, Catalyst C9200-24t, Catalyst C9200-48p and 48 more | 2020-10-08 | 7.1 HIGH | 8.6 HIGH |
| A vulnerability in the Umbrella Connector component of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to trigger a reload, resulting in a denial of service condition on an affected device. The vulnerability is due to insufficient error handling when parsing DNS requests. An attacker could exploit this vulnerability by sending a series of malicious DNS requests to an Umbrella Connector client interface of an affected device. A successful exploit could allow the attacker to cause a crash of the iosd process, which triggers a reload of the affected device. | |||||
| CVE-2019-12658 | 1 Cisco | 151 1100 Integrated Services R, 4221 Integrated Services R, 4321 Integrated Services R and 148 more | 2020-10-08 | 7.8 HIGH | 7.5 HIGH |
| A vulnerability in the filesystem resource management code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to exhaust filesystem resources on an affected device and cause a denial of service (DoS) condition. The vulnerability is due to ineffective management of the underlying filesystem resources. An attacker could exploit this vulnerability by performing specific actions that result in messages being sent to specific operating system log files. A successful exploit could allow the attacker to exhaust available filesystem space on an affected device. This could cause the device to crash and reload, resulting in a DoS condition for clients whose network traffic is transiting the device. Upon reload of the device, the impacted filesystem space is cleared, and the device will return to normal operation. However, continued exploitation of this vulnerability could cause subsequent forced crashes and reloads, which could lead to an extended DoS condition. | |||||
| CVE-2019-12659 | 1 Cisco | 2 Cbr-8 Converged Broadband Router, Ios Xe | 2020-10-08 | 5.0 MEDIUM | 7.5 HIGH |
| A vulnerability in the HTTP server code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the HTTP server to crash. The vulnerability is due to a logical error in the logging mechanism. An attacker could exploit this vulnerability by generating a high amount of long-lived connections to the HTTP service on the device. A successful exploit could allow the attacker to cause the HTTP server to crash. | |||||
| CVE-2019-12660 | 1 Cisco | 1 Ios Xe | 2020-10-08 | 4.9 MEDIUM | 5.5 MEDIUM |
| A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to write values to the underlying memory of an affected device. The vulnerability is due to improper input validation and authorization of specific commands that a user can execute within the CLI. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a specific set of commands. A successful exploit could allow the attacker to modify the configuration of the device to cause it to be non-secure and abnormally functioning. | |||||
| CVE-2020-3512 | 1 Cisco | 132 Catalyst 3650-12x48uq, Catalyst 3650-12x48ur, Catalyst 3650-12x48uz and 129 more | 2020-10-08 | 5.7 MEDIUM | 7.4 HIGH |
| A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload. | |||||
| CVE-2020-3513 | 1 Cisco | 7 Asr 902, Asr 903, Asr 907 and 4 more | 2020-10-08 | 6.9 MEDIUM | 6.7 MEDIUM |
| Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (RSP3) installed could allow an authenticated, local attacker with high privileges to execute persistent code at bootup and break the chain of trust. These vulnerabilities are due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit these vulnerabilities by copying a specific file to the local file system of an affected device and defining specific ROMMON variables. A successful exploit could allow the attacker to run arbitrary code on the underlying operating system (OS) with root privileges. To exploit these vulnerabilities, an attacker would need to have access to the root shell on the device or have physical access to the device. | |||||
| CVE-2020-3516 | 1 Cisco | 1 Ios Xe | 2020-10-08 | 4.0 MEDIUM | 4.3 MEDIUM |
| A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server. | |||||
| CVE-2020-3399 | 1 Cisco | 7 Catalyst 9800-40, Catalyst 9800-80, Catalyst 9800-cl and 4 more | 2020-10-07 | 7.8 HIGH | 8.6 HIGH |
| A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device. | |||||
| CVE-2020-3416 | 1 Cisco | 4 Asr 902, Asr 903, Asr 907 and 1 more | 2020-10-07 | 6.9 MEDIUM | 6.7 MEDIUM |
| Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (RSP3) installed could allow an authenticated, local attacker with high privileges to execute persistent code at bootup and break the chain of trust. These vulnerabilities are due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit these vulnerabilities by copying a specific file to the local file system of an affected device and defining specific ROMMON variables. A successful exploit could allow the attacker to run arbitrary code on the underlying operating system (OS) with root privileges. To exploit these vulnerabilities, an attacker would need to have access to the root shell on the device or have physical access to the device. | |||||
| CVE-2020-3527 | 1 Cisco | 13 Catalyst C9200l-24p-4g, Catalyst C9200l-24p-4x, Catalyst C9200l-24pxg-2y and 10 more | 2020-10-06 | 7.8 HIGH | 8.6 HIGH |
| A vulnerability in the Polaris kernel of Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to crash the device. The vulnerability is due to insufficient packet size validation. An attacker could exploit this vulnerability by sending jumbo frames or frames larger than the configured MTU size to the management interface of this device. A successful exploit could allow the attacker to crash the device fully before an automatic recovery. | |||||
| CVE-2020-3414 | 1 Cisco | 2 Ios Xe, Isr 4461 | 2020-10-06 | 7.8 HIGH | 8.6 HIGH |
| A vulnerability in the packet processing of Cisco IOS XE Software for Cisco 4461 Integrated Services Routers could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect processing of IPv4 or IPv6 traffic to or through an affected device. An attacker could exploit this vulnerability by sending IP traffic to or through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. | |||||
| CVE-2020-3404 | 1 Cisco | 128 Asr1001-hx, Asr1001-hx-rf, Asr1001-x-rf and 125 more | 2020-10-06 | 7.2 HIGH | 7.8 HIGH |
| A vulnerability in the persistent Telnet/Secure Shell (SSH) CLI of Cisco IOS XE Software could allow an authenticated, local attacker to gain shell access on an affected device and execute commands on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient enforcement of the consent token in authorizing shell access. An attacker could exploit this vulnerability by authenticating to the persistent Telnet/SSH CLI on an affected device and requesting shell access. A successful exploit could allow the attacker to gain shell access on the affected device and execute commands on the underlying OS with root privileges. | |||||
| CVE-2020-3487 | 1 Cisco | 10 Catalyst 9115 Ap, Catalyst 9117 Ap, Catalyst 9120 Ap and 7 more | 2020-10-06 | 6.1 MEDIUM | 6.5 MEDIUM |
| Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition of an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device. | |||||
| CVE-2016-6380 | 1 Cisco | 6 Ios, Ios Xe, Ios Xe 3.2ja and 3 more | 2020-09-29 | 8.3 HIGH | 8.1 HIGH |
| The DNS forwarder in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.15 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (data corruption or device reload) via a crafted DNS response, aka Bug ID CSCup90532. | |||||
| CVE-2016-6386 | 1 Cisco | 6 Ios Xe, Ios Xe 16.1, Ios Xe 3.2ja and 3 more | 2020-09-29 | 7.8 HIGH | 7.5 HIGH |
| Cisco IOS XE 3.1 through 3.17 and 16.1 on 64-bit platforms allows remote attackers to cause a denial of service (data-structure corruption and device reload) via fragmented IPv4 packets, aka Bug ID CSCux66005. | |||||
| CVE-2016-6381 | 1 Cisco | 6 Ios, Ios Xe, Ios Xe 16.1 and 3 more | 2020-09-29 | 7.1 HIGH | 7.5 HIGH |
| Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bug ID CSCuy47382. | |||||
| CVE-2018-0470 | 1 Cisco | 1 Ios Xe | 2020-09-29 | 7.8 HIGH | 8.6 HIGH |
| A vulnerability in the web framework of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a buffer overflow condition on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly parsing malformed HTTP packets that are destined to a device. An attacker could exploit this vulnerability by sending a malformed HTTP packet to an affected device for processing. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected device, resulting in a DoS condition. | |||||