Cisco Unity Connection vulnerabilities

CVE-2026-20045 [CRITICAL] CWE-94 CVE-2026-20045: A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications M A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unity Connection, and Cisco Webex Calling Dedicated Instance could allow an unauthenticated, remote attacker to ex

CVE-2024-20253 [CRITICAL] CWE-502 CVE-2024-20253: A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to the improper processing of user-provided data that is being read into memory. An attacker could exploit this vulnerability by se

CVE-2024-20272 [CRITICAL] CWE-434 CVE-2024-20272: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unaut A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system and execute commands on the underlying operating system. This vulnerability is due to a lack of authentication in a specific API and improper validation of user-supplied dat

CVE-2026-20034 [HIGH] CWE-35 CVE-2026-20034: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authe A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploi

CVE-2026-76473 [CRITICAL] CWE-74 CVE-2026-76473: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Manageme

CVE-2026-76474 [CRITICAL] CWE-287 CVE-2026-76474: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Managem

CVE-2021-1362 [HIGH] CWE-94 CVE-2021-1362: A vulnerability in the SOAP API endpoint of Cisco Unified Communications Manager, Cisco Unified Comm A vulnerability in the SOAP API endpoint of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, and Cisco Prime License Manager could allow an authenticated, remote attacker to execute arbitrary code on an affected device

CVE-2026-76477 [HIGH] CWE-89 CVE-2026-76477: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management E

CVE-2026-76476 [HIGH] CWE-20 CVE-2026-76476: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management E

CVE-2026-76478 [HIGH] CWE-284 CVE-2026-76478: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management

CVE-2026-76475 [CRITICAL] CWE-79 CVE-2026-76475: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Manageme

CVE-2026-20035 [HIGH] CWE-918 CVE-2026-20035: A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, re A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attacker to conduct SSRF attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A

CVE-2026-76479 [HIGH] CWE-22 CVE-2026-76479: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management E

CVE-2026-76481 [HIGH] CWE-703 CVE-2026-76481: As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams f As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management

CVE-2023-20266 [HIGH] CWE-347 CVE-2023-20266: A vulnerability in Cisco Emergency Responder, Cisco Unified Communications Manager (Unified CM), Cis A vulnerability in Cisco Emergency Responder, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an authenticated, remote attacker to elevate privileges to root on an affected device. This vulnerability exists because the applicatio

CVE-2026-20081 [MEDIUM] CWE-23 CVE-2026-20081: Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker&nbs Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials. These vulnerabilities are due to improper sanitization of user input to the web-based management interface. An

CVE-2026-20078 [MEDIUM] CWE-23 CVE-2026-20078: Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker&nbs Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials. These vulnerabilities are due to improper sanitization of user input to the web-based management interface. An

CVE-2023-20259 [HIGH] CWE-400 CVE-2023-20259: A vulnerability in an API endpoint of multiple Cisco Unified Communications Products could allow an A vulnerability in an API endpoint of multiple Cisco Unified Communications Products could allow an unauthenticated, remote attacker to cause high CPU utilization, which could impact access to the web-based management interface and cause delays with call processing. This API is not used for device management and is unlikely to be used in normal operati

CVE-2026-20061 [MEDIUM] CWE-89 CVE-2026-20061: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authe A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to perform an SQL injection attack against an affected device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device. This vulnerability is due to insufficient validation of user-

CVE-2020-3130 [MEDIUM] CWE-22 CVE-2020-3130: A vulnerability in the web management interface of Cisco Unity Connection could allow an authenticat A vulnerability in the web management interface of Cisco Unity Connection could allow an authenticated remote attacker to overwrite files on the underlying filesystem. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web management interface. A successful ex