CVE Vulnerability Advisory Database
Filter vulnerabilities by CVSS severity, active CISA KEV exploitation, and technology stack.
Zimbra Collaboration Suite (ZCS) Remote Code Execution Vulnerability Advisory (CVE-2026-73570, CISA KEV Listed)
[Affected Scope] Zimbra Collaboration (ZCS) versions prior to 10.1.20, specifically when the optional zimbra-snmp package is installed and SNMP notifications are enabled.
[Impact] An unauthenticated remote attacker can execute arbitrary operating system commands as the Zimbra user by sending specially crafted SMTP requests.
[Mitigation] Immediately upgrade Zimbra Collaboration to version 10.1.20 or later, or temporarily disable the zimbra-snmp service.
Cisco IOS and IOS XE SNMP Subsystem Stack Overflow Vulnerability (CVE-2025-20352) Technical Advisory
[Affected Scope] All versions of Cisco IOS and Cisco IOS XE Software with active SNMP services
[Impact] Authenticated attackers can trigger a system reload (DoS) or execute arbitrary code with root privileges (RCE) via crafted SNMP packets
[Mitigation] Apply official Cisco software updates immediately, restrict SNMP access via ACLs, or disable unused SNMP services
Cisco IOS Catalyst Switches SNMP ciscoFlashMIB Denial of Service Vulnerability (CVE-2018-0161) Technical Advisory
[Affected Scope] Cisco Catalyst 2960-L Series, Catalyst Digital Building Series 8P, and 8U Switches running vulnerable Cisco IOS and configured with SNMPv2 or SNMPv3.
[Impact] An authenticated remote attacker can trigger a device reload (Denial of Service) via a SYS-3-CPUHOG error by sending a crafted SNMP GET request for the ciscoFlashMIB OID.
[Mitigation] Apply the official Cisco IOS software updates, or implement SNMP MIB views to exclude access to the ciscoFlashMIB OID and restrict SNMP access using ACLs.
Cisco IOS and IOS XE SNMP Subsystem Remote Code Execution and DoS Vulnerability (CVE-2017-6744)
[Affected Scope] Cisco IOS and 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 control or cause a denial of service (system reload)
[Mitigation] Apply official Cisco software updates, or implement workarounds by restricting SNMP views to exclude vulnerable MIBs and enforcing ACLs
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
Siemens SIMATIC CP 1543-1 SNMP Write Privilege Bypass Vulnerability (CVE-2016-8562) Security Advisory
[Affected Scope] Siemens SIMATIC CP 1543-1 and SIPLUS NET CP 1543-1 (All versions < V2.0.28)
[Impact] Unauthorized modification of read-only SNMP variables via port 161/udp, potentially leading to reduced availability or Denial-of-Service (DoS)
[Mitigation] Immediately upgrade firmware to V2.0.28 or higher, and restrict access to port 161/udp using network firewalls
Cisco ASA SNMP Buffer Overflow Remote Code Execution Vulnerability (CVE-2016-6366, EXTRABACON)
[Affected Scope] Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, 5500-X, ASAv, Firepower 9300, PIX, and FWSM devices
[Impact] Remote authenticated attackers can exploit this vulnerability to execute arbitrary code (RCE) with elevated privileges or cause a denial of service (DoS) via crafted IPv4 SNMP packets
[Mitigation] Apply official Cisco software updates immediately, restrict SNMP access using strict Access Control Lists (ACLs), and rotate SNMP community strings