CVE-2020-27131CWE-20

Cisco Security Manager Java Deserialization Vulnerabilities

High · published November 17, 2020

Patch now

High probability of exploitation

CVSS calls it high at 8.1. It sits in the 99.8th percentile for exploit probability.

CVSS v3.1
8.1
EPSS
88%
Percentile
99.8
In the wild
Unconfirmed
What it is

Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. These vulnerabilities are due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit these vulnerabilities by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of NT AUTHORITY\SYSTEM on the Windows target host. Cisco has not released software updates that address these vulnerabilities.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.87719 · 99.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-11-17T03:10Z
EPSS history
Timeline
  • 17 NOV 03:10Z
    Cisco Security Manager Java Deserialization Vulnerabilities
    cvelistv5