Improper input validation in Cisco iOS Software
CVE-2019-1751
A vulnerability in the Network Address Translation 64 (NAT64) functions of Cisco IOS Software could allow an unauthenticated, remote attacker to cause either an interface queue wedge or a device reload. The vulnerability is due to the incorrect handling of certain IPv4 packet streams that are sent through the device. An attacker could exploit this vulnerability by sending specific IPv4 packet streams through the device. An exploit could allow the attacker to either cause an interface queue wedge or a device reload, resulting in a denial of service (DoS) condition.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Cisco iOS Software — versions 15.x
- Cisco iOS — versions 15.5(1)t4, 15.4(3)m3, 15.6(1)t1
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327… (vendor-advisory, Patch, Vendor Advisory)
- www.securityfocus.com/bid/107601 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1751?
- CVE-2019-1751 is a high-severity vulnerability in Cisco iOS Software, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2019-03-28.
- How severe is CVE-2019-1751?
- High severity. CVSS v3 base score is 8.6 out of 10.