CVE-2020-3562CWE-119

CVE-2020-3562

High · published October 21, 2020

CVSS v3.1
8.6
EPSS
2%
Percentile
78.6
In the wild
Unconfirmed
What it is

A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. No manual intervention is needed to recover the device after it has reloaded.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01825 · 78.6th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2020-10-21T23:15Z
Affected products (3)
ProductVersionsFixed in
cisco/secure_firewall_threat_defenseall versions—
cisco/secure_firewall_threat_defenseall versions—
cisco/secure_firewall_threat_defenseall versions—
References (2)
EPSS history
Timeline
  • 21 OCT 18:41Z
    Cisco Firepower 2100 Series SSL/TLS Inspection Denial of Service Vulnerability
    cvelistv5