Vulnerability in Cisco iOS Xe
CVE-2018-0157
A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: -0.000
Affected products
- Cisco iOS Xe — versions 16.4.1, 16.4.2, 16.5.1
- Cisco iOS Xe — versions Cisco IOS XE
Weakness classification (CWE)
References
- www.securitytracker.com/id/1040593 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/103561 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328… (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-0157?
- CVE-2018-0157 is a high-severity vulnerability in Cisco iOS Xe, classified under CWE-19. CVSS score: 8.6/10. Published 2018-03-28.
- How severe is CVE-2018-0157?
- High severity. CVSS v3 base score is 8.6 out of 10.