Improper input validation in Cisco Adaptive Security Appliance Software
CVE-2019-1687
A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending a crafted TCP packet sequence to the targeted device. A successful exploit could allow the attacker to cause a DoS condition.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.029 (86.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: +0.000
Affected products
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/108176 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2019-1687?
- CVE-2019-1687 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-05-03.
- How severe is CVE-2019-1687?
- High severity. CVSS v3 base score is 7.5 out of 10.