A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.
[
{
"product": "Unified Communications Manager IM & Presence Service (CUCM IM&P)",
"vendor": "Cisco Systems, Inc.",
"versions": [
{
"status": "affected",
"version": "unspecified"
}
]
},
{
"product": "TelePresence Video Communication Server (VCS) and Expressway",
"vendor": "Cisco Systems, Inc.",
"versions": [
{
"status": "affected",
"version": "unspecified"
}
]
}
]