CVE Vulnerability Advisory Database
Filter vulnerabilities by CVSS severity, active CISA KEV exploitation, and technology stack.
Cisco IOS and IOS XE SNMP Subsystem Remote Code Execution Vulnerability (CVE-2017-6743)
[Affected Scope] Cisco IOS and IOS XE Software with SNMP enabled and affected MIBs/OIDs not explicitly excluded
[Impact] Authenticated remote attackers can execute arbitrary code with full system privileges or trigger a device reload (DoS) via crafted SNMP packets
[Mitigation] Apply official Cisco software updates, restrict SNMP access using ACLs, enforce strong community strings/credentials, or disable vulnerable MIB views
Cisco IOS and IOS-XE SNMP Buffer Overflow Remote Code Execution Vulnerability (CVE-2017-6742) Security Advisory
[Affected Scope] Cisco IOS and IOS-XE devices with active SNMP services and exposed valid credentials (community strings or SNMPv3 users)
[Impact] An authenticated remote attacker can send crafted SNMP packets to trigger a buffer overflow, causing a system reload (DoS) or executing arbitrary code with full administrative privileges
[Mitigation] Apply official Cisco software updates, restrict SNMP access using strict Access Control Lists (ACLs), or disable SNMP services if not required
Cisco IOS and IOS XE SNMP Subsystem Remote Code Execution and DoS Vulnerability (CVE-2017-6740)
[Affected Scope] All Cisco devices running Cisco IOS or IOS XE software with SNMP enabled and affected MIBs/OIDs not explicitly excluded
[Impact] An authenticated, remote attacker can execute arbitrary code with full system privileges or trigger a device reload, causing a complete Denial of Service (DoS)
[Mitigation] Apply official software updates via Cisco IOS Software Checker, or implement workarounds including SNMP View restrictions and Access Control Lists (ACLs)
Cisco IOS and IOS-XE SNMP Buffer Overflow Remote Code Execution Vulnerability (CVE-2017-6739)
[Affected Scope] Cisco IOS and IOS-XE devices with active SNMP services and exposed community strings or user credentials.
[Impact] Authenticated remote attackers can trigger a buffer overflow via crafted SNMP packets, leading to system reload (DoS) or full remote code execution (RCE) with administrative privileges.
[Mitigation] Apply official Cisco software updates, restrict SNMP access using strict Access Control Lists (ACLs), or disable SNMP services if not required.
Cisco IOS and IOS XE SNMP Subsystem Remote Code Execution and DoS Vulnerability (CVE-2017-6738)
[Affected Scope] Cisco IOS and IOS XE Software with SNMP enabled and affected MIBs/OIDs not explicitly excluded
[Impact] Authenticated remote attackers can execute arbitrary code with full system control or trigger a device reload by sending crafted SNMP packets
[Mitigation] Apply official software updates via Cisco IOS Software Checker, or implement SNMPv3 hardening and MIB filtering workarounds
Cisco IOS and IOS-XE SNMP Buffer Overflow Remote Code Execution Vulnerability (CVE-2017-6737) Security Advisory
[Affected Scope] Cisco IOS and IOS-XE network devices with active SNMP services and exposed valid credentials (community strings or SNMPv3 user credentials).
[Impact] An authenticated, remote attacker can send crafted SNMP packets to trigger a buffer overflow, leading to a system reload or arbitrary remote code execution (RCE) with full administrative control.
[Mitigation] Apply official Cisco software patches immediately, or restrict SNMP access using Infrastructure ACLs and enforce complex community strings as a temporary workaround.
Cisco IOS and IOS XE SNMP Subsystem Remote Code Execution and DoS Vulnerability (CVE-2017-6736)
[Affected Scope] All Cisco devices running Cisco IOS and IOS XE Software with SNMP enabled and affected MIBs/OIDs not explicitly excluded
[Impact] Authenticated remote attackers can execute arbitrary code with full system privileges or trigger a device reload, leading to complete infrastructure compromise or denial of service
[Mitigation] Apply fixed software versions via Cisco IOS Software Checker, or implement workarounds including SNMP community ACLs, MIB view restrictions, or disabling SNMP
Cisco IOS and IOS XE Cluster Management Protocol (CMP) Remote Code Execution and Denial of Service Vulnerability (CVE-2017-3881)
[Affected Scope] Cisco IOS and IOS XE-based Catalyst switches and embedded service modules configured to accept Telnet connections and utilizing CMP
[Impact] Unauthenticated, remote attackers can execute arbitrary code with elevated privileges or cause a device reload by sending malformed CMP-specific Telnet options
[Mitigation] Apply official Cisco software updates immediately, or disable Telnet services and restrict VTY access using infrastructure ACLs
Cisco IOS / IOS XE / IOS XR / PIX IKEv1 Information Disclosure Vulnerability (CVE-2016-6415, BENIGNCERTAIN)
[Affected Scope] Cisco IOS 12.2 through 12.4 and 15.0 through 15.6, IOS XE through 3.18S, IOS XR 4.3.x and 5.0.x through 5.2.x, and PIX before 7.0
[Impact] Unauthenticated remote attackers can retrieve sensitive information from device memory (including private keys and configuration data) by sending crafted IKEv1 negotiation requests
[Mitigation] Upgrade affected device firmware to the latest patched releases, or restrict access to UDP ports 500 and 4500 using infrastructure ACLs to trusted peers only