CVE-2018-0435

mediumpriority · track · 36EPSS 0.011 · 65 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.09% (65th) EPSS

CVSS 6.5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisco_csaf · nvd

EPSS · scored 2026-10-28

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco Umbrellacisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.5–9.1

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v3.09.1criticalCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:Hprimary · NVD / NIST USexploitability 3.1 · impact 5.3

v3.08.3highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.09.1criticalCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:Hsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimary

affected products (3)

Products and version ranges known to be affected.

Cisco Cisco Umbrellaall versionscisco_csafUS
Cisco Cisco Umbrella≤ n/aenisa_euvdEU
cisco umbrellaall versionsnvdUScpe:2.3:a:cisco:umbrella:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-20180905-umbrella-apiCisco Umbrella API Unauthorized Access Vulnerability2018-09-05csaf · cisco_csafUS
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-api ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-api"]

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisco_csaf nvd NVD CVE.org MITRE

published 2018-10-05modified 2026-06-17

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+7722 more

references (6)

External citations — patches, advisories, analysis.

scry

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