Vulnerability in Cisco Remote Phy

CVE-2018-15391

A vulnerability in certain IPv4 fragment-processing functions of Cisco Remote PHY Software could allow an unauthenticated, remote attacker to impact traffic passing through a device, potentially causing a denial of service (DoS) condition. The vulnerability is due to the affected software not validating and calculating certain numerical values in IPv4 packets that are sent to an affected device. An attacker could exploit this vulnerability by sending malformed IPv4 traffic to an affected device. A successful exploit could allow the attacker to disrupt the flow of certain IPv4 traffic passing through an affected device, which could result in a DoS condition.

EPSS: 0.014 (70.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-15391?
CVE-2018-15391 is a high-severity vulnerability in Cisco Remote Phy, classified under CWE-399. CVSS score: 7.5/10. Published 2018-10-05.
How severe is CVE-2018-15391?
High severity. CVSS v3 base score is 7.5 out of 10.