9.1

CVE-2018-0435: cisco cisco umbrella Improper Authentication

CVSS: 9.1v3.0CriticalModified
Published 05-10-2018Last modified 26-11-2024
Open JSON

Vulnerability summary

CVE-2018-0435 is a critical (CVSS 9.1) Improper Authentication vulnerability in cisco cisco umbrella. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 65.1% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.0 (NVD)
EPSS score
1.09%
0%100%
Low · -0.56 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-10-2018
    PublishedVulnerability first disclosed.
  2. 26-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the Cisco Umbrella API could allow an authenticated, remote attacker to view and modify data across their organization and other organizations. The vulnerability is due to insufficient authentication configurations for the API interface of Cisco Umbrella. An attacker could exploit this vulnerability to view and potentially modify data for their organization or other organizations. A successful exploit could allow the attacker to read or modify data across multiple organizations.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.09%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

-0.56 pp

From 1.65% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.09%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco1 product

1 vendor · 1 product

References

2 links