CVE-2026-20032

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb

Configurations

No configuration.

History

07 Oct 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 17:16

Updated : 2026-10-08 20:08

NVD link : CVE-2026-20032

Mitre link : CVE-2026-20032

CVE.ORG link : CVE-2026-20032

JSON object : View

Products Affected

No product.

CWE

CWE-653

Improper Isolation or Compartmentalization

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{"status": "affected", "version": "7.3(5)D1(1)"}, {"status": "affected", "version": "8.4(2)"}, {"status": "affected", "version": "8.4(3)"}, {"status": "affected", "version": "9.2(3)"}, {"status": "affected", "version": "8.2(1)"}, {"status": "affected", "version": "7.3(1)D1(1)"}, {"status": "affected", "version": "9.2(2v)"}, {"status": "affected", "version": "7.3(0)D1(1)"}, {"status": "affected", "version": "7.3(4)D1(1)"}, {"status": "affected", "version": "9.2(1)"}, {"status": "affected", "version": "9.2(2t)"}, {"status": "affected", "version": "9.2(3y)"}, {"status": "affected", "version": "9.3(2)"}, {"status": "affected", "version": "7.3(1)DY(1)"}, {"status": "affected", "version": "8.1(1)"}, {"status": "affected", "version": "8.2(2)"}, {"status": "affected", "version": "8.3(2)"}, {"status": "affected", "version": "7.3(2)D1(3a)"}, {"status": "affected", "version": "9.2(4)"}, {"status": "affected", "version": "8.1(2)"}, {"status": "affected", "version": "7.3(3)D1(1)"}, {"status": 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"version": "9.3(5)"}, {"status": "affected", "version": "8.4(2a)"}, {"status": "affected", "version": "8.4(2b)"}, {"status": "affected", "version": "8.5(1)"}, {"status": "affected", "version": "9.3(6)"}, {"status": "affected", "version": "8.4(4)"}, {"status": "affected", "version": "7.3(7)D1(1)"}, {"status": "affected", "version": "8.4(2c)"}, {"status": "affected", "version": "9.3(5w)"}, {"status": "affected", "version": "8.2(7)"}, {"status": "affected", "version": "9.3(7)"}, {"status": "affected", "version": "9.3(7k)"}, {"status": "affected", "version": "7.3(8)D1(1)"}, {"status": "affected", "version": "9.3(7a)"}, {"status": "affected", "version": "8.2(7a)"}, {"status": "affected", "version": "9.3(8)"}, {"status": "affected", "version": "8.4(4a)"}, {"status": "affected", "version": "8.4(2d)"}, {"status": "affected", "version": "8.4(5)"}, {"status": "affected", "version": "8.2(8)"}, {"status": "affected", "version": "9.3(9)"}, {"status": "affected", "version": "7.3(9)D1(1)"}, {"status": "affected", "version": "8.4(6)"}, {"status": "affected", "version": "8.4(2e)"}, {"status": "affected", "version": "9.3(10)"}, {"status": "affected", "version": "9.2(1a)"}, {"status": "affected", "version": "8.2(9)"}, {"status": "affected", "version": "10.3(1)"}, {"status": "affected", "version": "8.4(7)"}, {"status": "affected", "version": "10.3(2)"}, {"status": "affected", "version": "8.4(6a)"}, {"status": "affected", "version": "9.3(11)"}, {"status": "affected", "version": "10.3(3)"}, {"status": "affected", "version": "9.4(1)"}, {"status": "affected", "version": "9.3(2a)"}, {"status": "affected", "version": "8.4(2f)"}, {"status": "affected", "version": "8.2(10)"}, {"status": "affected", "version": "9.3(12)"}, {"status": "affected", "version": "10.4(1)"}, {"status": "affected", "version": "8.4(8)"}, {"status": "affected", "version": "10.3(99w)"}, {"status": "affected", "version": "10.3(3w)"}, {"status": "affected", "version": "10.3(99x)"}, {"status": "affected", "version": "10.3(3o)"}, {"status": "affected", "version": "8.4(9)"}, {"status": "affected", "version": "10.3(4)"}, {"status": "affected", "version": "10.3(3p)"}, {"status": "affected", "version": "10.3(4a)"}, {"status": "affected", "version": "9.4(1a)"}, {"status": "affected", "version": "10.4(2)"}, {"status": "affected", "version": "10.3(3q)"}, {"status": "affected", "version": "9.3(13)"}, {"status": "affected", "version": "8.2(11)"}, {"status": "affected", "version": "9.4(2)"}, {"status": "affected", "version": "10.3(5)"}, {"status": "affected", "version": "10.4(3)"}, {"status": "affected", "version": "10.3(3x)"}, {"status": "affected", "version": "10.3(4g)"}, {"status": "affected", "version": "10.5(1)"}, {"status": "affected", "version": "8.4(10)"}, {"status": "affected", "version": "9.4(2a)"}, {"status": "affected", "version": "10.3(3r)"}, {"status": "affected", "version": "10.3(6)"}, {"status": "affected", "version": "9.3(14)"}, {"status": "affected", "version": "10.4(4)"}, {"status": "affected", "version": "10.3(4h)"}, {"status": "affected", "version": "10.5(2)"}, {"status": "affected", "version": "8.4(11)"}, {"status": "affected", "version": "9.4(3)"}, {"status": "affected", "version": "10.3(7)"}, {"status": "affected", "version": "10.4(5)"}, {"status": "affected", "version": "10.5(3)"}, {"status": "affected", "version": "9.3(15)"}, {"status": "affected", "version": "9.4(3a)"}, {"status": "affected", "version": "10.4(4g)"}, {"status": "affected", "version": "10.5(4)"}, {"status": "affected", "version": "9.4(3b)"}, {"status": "affected", "version": "8.4(12)"}, {"status": "affected", "version": "10.6(1)"}, {"status": "affected", "version": "10.5(3t)"}, {"status": "affected", "version": "10.3(8)"}, {"status": "affected", "version": "10.4(6)"}, {"status": "affected", "version": "10.5(3s)"}, {"status": "affected", "version": "10.5(3e)"}, {"status": "affected", "version": "9.4(4)"}, {"status": "affected", "version": "10.5(3o)"}, {"status": "affected", "version": "9.3(16)"}, {"status": "affected", "version": "10.6(1s)"}, {"status": "affected", "version": "10.6(2)"}, {"status": "affected", "version": "10.5(3p)"}, {"status": "affected", "version": "9.4(5)"}, {"status": "affected", "version": "10.3(9)"}, {"status": "affected", "version": "10.6(2s)"}, {"status": "affected", "version": "8.4(13)"}, {"status": "affected", "version": "10.6(3)"}, {"status": "affected", "version": "10.4(7)"}, {"status": "affected", "version": "10.5(5)"}, {"status": "affected", "version": "9.3(17)"}, {"status": "affected", "version": "10.6(2n)"}, {"status": "affected", "version": "10.6(3s)"}], "defaultStatus": "unknown"}]}], "published": "2026-10-07T17:16:54.480", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-653"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user."}], "lastModified": "2026-10-08T20:08:45.857", "sourceIdentifier": "psirt@cisco.com"}