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Case File

CVE-2015-4199

HIGH · CVSS 7.1 EPSS 2.12%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2015-06-27 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It affects Cisco. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2015-4199
Severity
HIGH
CVSS
7.1
EPSS
2.12%
Cisco

Original NVD Description

Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.