Vulnerability Details : CVE-2019-1887

A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.
Published 2019-07-06 02:15:11
Updated 2019-10-09 23:48:26
Source Cisco Systems, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2019-1887

Exploit prediction scoring system (EPSS) score for CVE-2019-1887

EPSS FAQ
0.23%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-1887

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST
7.5
 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST
8.6
 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
3.9
4.0
 Cisco Systems, Inc.

CWE ids for CVE-2019-1887

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • ykramarz@cisco.com (Secondary)

References for CVE-2019-1887

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