8.6

CVE-2020-3203

A vulnerability in the locally significant certificate (LSC) provisioning feature of Cisco Catalyst 9800 Series Wireless Controllers that are running Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak that could lead to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain public key infrastructure (PKI) packets. An attacker could exploit this vulnerability by sending crafted Secure Sockets Layer (SSL) packets to an affected device. A successful exploit could cause an affected device to continuously consume memory, which could result in a memory allocation failure that leads to a crash and causes a DoS condition.

Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Ios Xe Version16.1.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.1.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.1.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.2.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.2.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.4
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.5
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.5b
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.6
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.7
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.8
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.3.9
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.4.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.4.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.4.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.5.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.5.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.5.1b
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.5.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.5.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.7.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.7.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.7.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.1b
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.1c
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.1s
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.8.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.1b
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.1e
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.1s
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.10.3
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.11.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.11.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.11.1b
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.11.1c
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.11.1s
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.1
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.1a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.1c
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.1s
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.2
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.2a
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.4
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Cisco ≫ Ios Xe Version16.12.8
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.76% 0.725
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvd@nist.gov 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
psirt@cisco.com 8.6 3.9 4
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.