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The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.","2020-04-15",9.8,"v3.1","Critical",0.83855,{"cveId":230,"description":231,"publishedDate":12,"cvssScore":225,"cvssVersion":226,"severity":227,"isKev":17,"epssScore":232},"CVE-2023-20078","Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.",0.10351,{"cveId":234,"description":231,"publishedDate":12,"cvssScore":235,"cvssVersion":226,"severity":236,"isKev":17,"epssScore":237},"CVE-2023-20079",7.5,"High",0.10314,{"cveId":239,"description":240,"publishedDate":241,"cvssScore":235,"cvssVersion":226,"severity":236,"isKev":17,"epssScore":242},"CVE-2020-3574","A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop responding to incoming calls, drop connected calls, or unexpectedly reload. The vulnerability is due to insufficient TCP ingress packet rate limiting. An attacker could exploit this vulnerability by sending a high and sustained rate of crafted TCP traffic to the targeted device. A successful exploit could allow the attacker to impact operations of the phone or cause the phone to reload, leading to a denial of service (DoS) condition.","2020-11-06",0.0803,{"cveId":244,"description":245,"publishedDate":246,"cvssScore":247,"cvssVersion":226,"severity":236,"isKev":17,"epssScore":248},"CVE-2022-20968","A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device.\r\n\r\nThis vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.","2022-12-12",8.8,0.06355,{"cveId":250,"description":251,"publishedDate":252,"cvssScore":247,"cvssVersion":226,"severity":236,"isKev":17,"epssScore":253},"CVE-2020-3111","A vulnerability in the Cisco Discovery Protocol implementation for the Cisco IP Phone could allow an unauthenticated, adjacent attacker to remotely execute code with root privileges or cause a reload of an affected IP phone. The vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to the targeted IP phone. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).","2020-02-05",0.03095,{"cveId":255,"description":256,"publishedDate":257,"cvssScore":235,"cvssVersion":226,"severity":236,"isKev":17,"epssScore":258},"CVE-2019-1635","A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to incomplete error handling when XML data within a SIP packet is parsed. An attacker could exploit this vulnerability by sending a SIP packet that contains a malicious XML payload to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition.","2019-05-03",0.01967,{"cveId":260,"description":261,"publishedDate":262,"cvssScore":235,"cvssVersion":263,"severity":236,"isKev":17,"epssScore":264},"CVE-2019-1922","A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.","2019-07-06","v3.0",0.01317,{"cveId":266,"description":267,"publishedDate":268,"cvssScore":269,"cvssVersion":226,"severity":270,"isKev":17,"epssScore":271},"CVE-2019-1684","A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions prior to 12.6(1)MN80 are affected.","2019-02-21",6.5,"Medium",0.0064,{"cveId":273,"description":274,"publishedDate":275,"cvssScore":276,"cvssVersion":226,"severity":270,"isKev":17,"epssScore":277},"CVE-2019-16008","A vulnerability in the web-based GUI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the web-based GUI of an affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.","2020-01-26",5.4,0.00633,[279],{"cveId":222,"description":223,"publishedDate":224,"cvssScore":225,"severity":227,"isKev":4,"epssScore":228,"cisaVulnName":280,"cisaDateAdded":281,"cisaShortDescription":282,"cisaRequiredAction":283},"Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability","2021-11-03","Cisco IP Phones contain an improper input validation vulnerability for HTTP requests. Exploitation could allow an attacker to execute code remotely with root privileges or cause a denial-of-service (DoS) condition.","Apply updates per vendor instructions.",{"title":285,"metaDescription":286,"keywords":287,"structuredData":288},"Ip Phone 8851 Firmware by Cisco - Security Vulnerabilities & Analysis | Precursor Intelligence","Comprehensive security analysis for Ip Phone 8851 Firmware by Cisco covering 67 versions with 15 tracked vulnerabilities including 1 critical and 0 high-severity issues and 1 CISA KEV vulnerability. 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