Cisco IoT Field Network Director Improper Access Control Vulnerability

published 2020-11-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18707

cvss: 5.0; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

cisco iot_field_network_director 4.6.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 23 mo ago (2024-11-13)

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

Cisco Cisco IoT Field Network Director (IoT-FND)

Classification

Weakness

CWE-284 Improper Access Control
CWE-269 Improper Privilege Management

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-FND-LV-hE4Rntet
vendor-advisory

Sources

CVE List CVE-2020-26077
NVD CVE-2020-26077

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Summary