Input validation

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

Design/Logic Flaw

On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager FXPC process may crash and restart upon receipt of specific layer 2 frames. Continued receipt and processi...

Design/Logic Flaw

A vulnerability in the handling of internal resources necessary to bring up a large number of Layer 2 broadband remote access subscriber BRAS nodes in Juniper Networks Junos OS can cause the Access Node Control Protocol daemon ANCPD to crash and restart, leading to a Denial of Service DoS...

CVE-2021-0243 Junos OS: EX4300: Stateless firewall policer fails to discard traffic

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

CVE-2021-0239

In Juniper Networks Junos OS Evolved, a vulnerability (CVE-2021-0239) exists where a continuous stream of specific genuine Layer 2 frames can cause the AFT manager process (Evo-aftmand) to crash and restart the packet forwarding engine (PFE), resulting in a Denial of Service. Affected: Junos OS E...

CVE-2021-0228 Junos OS: MX Series: DDoS LACP violation upon receipt of specific layer 2 frames in EVPN-VXLAN deployment

An improper check for unusual or exceptional conditions vulnerability in Juniper Networks MX Series platforms with Trio-based MPC Modular Port Concentrator deployed in Ethernet VPN EVPN-Virtual Extensible LAN VXLAN configuration, may allow an attacker sending specific Layer 2 traffic to cause...

CVE-2021-0224 Junos OS: ANCPD core when hitting maximum-discovery-table-entries limit

A vulnerability in the handling of internal resources necessary to bring up a large number of Layer 2 broadband remote access subscriber BRAS nodes in Juniper Networks Junos OS can cause the Access Node Control Protocol daemon ANCPD to crash and restart, leading to a Denial of Service DoS...

CVE-2021-1309

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1308

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1251

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

Memory corruption

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1309 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1309 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1309

CVE-2021-1309 involves multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) implementation on Cisco Small Business RV Series Routers. The flaws allow an unauthenticated, adjacent attacker to execute arbitrary code or cause memory leakage, with memory loss or router reloads leading...

CVE-2021-1308 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1308 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

CVE-2021-1251

CVE-2021-1251 concerns multiple LLDP vulnerabilities in Cisco Small Business RV Series Routers. The related sources (Cisco advisory Cisco-SA-RV-MULTI-LLDP-U7E4CHCE, Nessus CISCO-SA-RV-MULTI-LLDP-U7E4CHCE.NASL, and NCERT/NCSC entries) describe an unauthenticated, adjacent attacker who can execute ...

CVE-2021-1251 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

Multiple vulnerabilities exist in the Link Layer Discovery Protocol LLDP implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would...

Managed Switch Port Mapping Tool 2.85.2 - Denial of Service Exploit

Exploit Title: Managed Switch Port Mapping Tool 2.85.2 - Denial of Service PoC Exploit Author: Ismael Nava Vendor Homepage: https://switchportmapper.com/ Software Link: https://switchportmapper.com/download.htm Version: 2.85.2 Tested on: Windows 10 Home x64 STEPS Open the program Managed Switch...