What is CVE-2019-12646?

CVE-2019-12646 is a high-severity vulnerability in Cisco 1100-4p, classified under CWE-399. CVSS score: 7.5/10. Published 2019-09-25.

How severe is CVE-2019-12646?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Cisco 1100-4p

CVE-2019-12646

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.

EPSS: 0.020 (79.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cisco 1100-4p
Cisco 1100-8p
Cisco 1101-4p
Cisco 1109-2p
Cisco 1109-4p
Cisco 1111x-8p
Cisco 4221_integrated_services_router
Cisco 4331_integrated_services_router
Cisco Ios Xe Software — versions unspecified
Cisco Csr_1000v

Weakness classification (CWE)

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2019-12646?: CVE-2019-12646 is a high-severity vulnerability in Cisco 1100-4p, classified under CWE-399. CVSS score: 7.5/10. Published 2019-09-25.
How severe is CVE-2019-12646?: High severity. CVSS v3 base score is 7.5 out of 10.