Is CVE-2021-1361 in the CISA KEV catalog?

No. CVE-2021-1361 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1361?

CVE-2021-1361 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-1361?

CVE-2021-1361 has an EPSS score of 1.57% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2021-1361?

No published fix for CVE-2021-1361 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2021-1361

CRITICALEPSS 73th pctl

9.8

CVSS v3

NVD

Description

A vulnerability in the implementation of an internal file management service for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode that are running Cisco NX-OS Software could allow an unauthenticated, remote attacker to create, delete, or overwrite arbitrary files with root privileges on the device. This vulnerability exists because TCP port 9075 is incorrectly configured to listen and respond to external connection requests. An attacker could exploit this vulnerability by sending crafted TCP packets to an IP address that is configured on a local interface on TCP port 9075. A successful exploit could allow the attacker to create, delete, or overwrite arbitrary files, including sensitive files that are related to the device configuration. For example, the attacker could add a user account without the device administrator knowing.

CWE-552

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.57%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Related Vulnerabilities

Other CWE-552 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-17519	High	7.5	98%	KEV	Fix
CVE-2025-11371	High	7.5	92%	KEV	Fix
CVE-2023-50164	Critical	9.8	81%	-	Fix
CVE-2016-3715	Medium	5.5	75%	KEV	Fix
CVE-2020-15175	High	7.4	71%	-	Fix
CVE-2021-39316	High	7.5	67%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.