CVE-2024-20366

HIGH

7.8

CVSS Score

Published: May 15, 2024 at 05:25 PM UTC

Updated: June 17, 2026 at 07:06 AM UTC

1 product affected across 1 vendorNetwork Services Orchestrator

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A vulnerability in the Tail-f High Availability Cluster Communications (HCC) function pack of Cisco Crosswork Network Services Orchestrator (NSO) could allow an authenticated, local attacker to elevate privileges to root on an affected device. This vulnerability exists because a user-controlled search path is used to locate executable files. An attacker could exploit this vulnerability by configuring the application in a way that causes a malicious file to be executed. A successful exploit could allow the attacker to execute arbitrary code on an affected device as the root user. To exploit this vulnerability, the attacker would need valid credentials on an affected device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Network Services Orchestrator · Cisco

95%

5.0 ≤ v < 5.0.55.1.1.1 ≤ v ≤ 6.2.26.0 ≤ v < 6.0.25.1.1.1 5.1.1.3 5.1.2 5.2.0.3 5.2.0.4 5.2.1 5.2.1.1 5.2.3.2 5.3.1 5.3.4.3 5.4 5.4.0.1 5.4.0.2 5.4.1 5.4.1.1 5.4.2 5.4.2.1 5.4.2.2 5.4.3 5.4.3.1 5.4.3.2 5.4.3.3 5.4.3.4 5.4.4 5.4.4.1 5.4.4.2 5.4.4.3 5.4.5 5.4.5.1 5.4.5.2 5.4.6 5.4.7 5.4.7.1 5.5 5.5.1 5.5.10 5.5.2 5.5.2.1 5.5.2.10 5.5.2.11 5.5.2.12 5.5.2.2 5.5.2.3 5.5.2.4 5.5.2.5 5.5.2.6 5.5.2.7 5.5.2.8 5.5.2.9 5.5.3 5.5.3.1 5.5.4 5.5.4.1 5.5.5 5.5.6 5.5.6.1 5.5.7 5.5.8 5.5.9 5.6 5.6.1 5.6.10 5.6.11 5.6.12 5.6.13 5.6.14 5.6.14.1 5.6.2 5.6.3 5.6.3.1 5.6.4 5.6.5 5.6.6 5.6.6.1 5.6.7 5.6.7.1 5.6.7.2 5.6.8 5.6.8.1 5.6.9 5.7 5.7.1 5.7.1.1 5.7.10 5.7.10.1 5.7.10.2 5.7.11 5.7.12 5.7.13 5.7.14 5.7.15.1 5.7.2 5.7.2.1 5.7.3 5.7.4 5.7.5 5.7.5.1 5.7.6 5.7.6.1 5.7.6.2 5.7.6.3 5.7.7 5.7.8 5.7.8.1 5.7.9 5.7.9.1 5.8 5.8.1 5.8.10 5.8.11 5.8.12 5.8.2 5.8.2.1 5.8.3 5.8.4 5.8.5 5.8.6 5.8.7 5.8.8 5.8.9 6.0 6.0.1 6.0.1.1 6.0.10 6.0.11 6.0.2 6.0.3 6.0.4 6.0.5 6.0.6 6.0.7 6.0.8 6.0.9 6.1 6.1.1 6.1.2 6.1.2.1 6.1.3 6.1.3.1 6.1.3.2 6.1.4 6.1.5 6.1.6 6.1.6.1 6.1.7 6.1.7.1 6.2 6.2.2

Affected range stops below 5.0.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nso-hcc-priv-esc-OWBWCs5D

References (1)

Vendor Advisory

Source: [email protected]

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nso-hcc-priv-esc-OWBWCs5D

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHcisco

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-73CWE-427

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