CVEvulnerability
CVE-2019-12646
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-09-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.0 ([email protected])
- 8.6 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-399, CWE-665
Description
A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP packets on which NAT is performed on an affected device. An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
Affected configurations
• cisco ios xe 15.4\(3\)s
• cisco ios xe 15.5\(3\)s
• cisco ios xe 15.6\(1\)s
• cisco ios xe 16.3.1
• cisco ios xe 16.4.1
• cisco ios xe 16.5.1
• cisco ios xe 16.6.1
• cisco ios xe 16.7.1
• cisco ios xe 16.8.1
• cisco ios xe 16.9.1
• cisco ios xe 16.10.1
• cisco ios xe 16.11.1
• cisco ios xe 16.12.1
Related
Weakness · not in database (1)
Weakness · CWE (1)
- CWE-665 Improper Initialization weakness