CVE-2020-26077

mediumpriority · track · 17EPSS 0.008 · 55 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.76% (55th) EPSS

CVSS 4 · medium

Is it mine?

4 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-28

A vulnerability in the access control functionality of Cisco IoT Field Network Director (FND) could allow an authenticated, remote attacker to view lists of users from different domains that are configured on an affected system. The vulnerability is due to improper access control. An attacker could exploit this vulnerability by sending an API request that alters the domain for a requested user list on an affected system. A successful exploit could allow the attacker to view lists of users from different domains on the affected system.

remediations

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

A vendor fix is available.

FixedCisco IoT Field Network Director (IoT-FND)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:Nsecondary · ENISA EU

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:Nsecondary · psirt@cisco.com USexploitability 3.1 · impact 1.4

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:Nsecondary · Cisco PSIRT US

v3.15mediumAV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USprimaryCWE-269USCWE-284USCWE-284US

affected products (4)

Products and version ranges known to be affected.

Cisco Cisco IoT Field Network Director (IoT-FND)all versionscisco_csafUS
Cisco Cisco IoT Field Network Director (IoT-FND)≤ n/aenisa_euvdEU
Cisco Systems Inc. IoT Field Network Director≤ 4.6.1fstec_bduRU
cisco iot field network director< 4.6.1nvdUScpe:2.3:a:cisco:iot_field_network_director:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-FND-LV-hE4RntetCisco IoT Field Network Director Improper Access Control Vulnerability2020-11-18csaf · cisco_csafUS
A vulnerability in the access control functionality of Cisco IoT Field Network Director (FND) could allow an authenticated, remote attacker to view lists of users from different domains that are configured on an affected system. The vulnerability is due to improper access control. An attacker could exploit this vulnerability by sending an API request that alters the domain for a requested user list on an affected system. A successful exploit could allow the attacker to view lists of users from different domains on the affected system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2020-11-18modified 2026-06-17

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references (5)

External citations — patches, advisories, analysis.

scry

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