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GHSA-W5W6-F4P9-3H6F
Vulnerability from github – Published: 2026-10-07 18:32 – Updated: 2026-10-07 18:32
VLAI
Details
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.
Severity
4.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20032"
],
"database_specific": {
"cwe_ids": [
"CWE-653"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-07T17:16:54Z",
"severity": "MODERATE"
},
"details": "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\u0026nbsp;device.\n\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.",
"id": "GHSA-w5w6-f4p9-3h6f",
"modified": "2026-10-07T18:32:10Z",
"published": "2026-10-07T18:32:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20032"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
CVE-2026-20032 (GCVE-0-2026-20032)
Vulnerability from cvelistv5 – Published: 2026-10-07 16:11 – Updated: 2026-10-07 19:23
VLAI
EPSS
VEX
Title
Cisco NX-OS Software Python Sandbox Escape Vulnerability
Summary
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.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 19:11 UTC
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
8.2(5)
Affected: 7.3(5)D1(1) Affected: 8.4(2) Affected: 8.4(3) Affected: 9.2(3) Affected: 8.2(1) Affected: 7.3(1)D1(1) Affected: 9.2(2v) Affected: 7.3(0)D1(1) Affected: 7.3(4)D1(1) Affected: 9.2(1) Affected: 9.2(2t) Affected: 9.2(3y) Affected: 9.3(2) Affected: 7.3(1)DY(1) Affected: 8.1(1) Affected: 8.2(2) Affected: 8.3(2) Affected: 7.3(2)D1(3a) Affected: 9.2(4) Affected: 8.1(2) Affected: 7.3(3)D1(1) Affected: 8.2(3) Affected: 8.3(1) Affected: 8.4(1) Affected: 8.1(1b) Affected: 7.3(0)DX(1) Affected: 7.3(2)D1(1) Affected: 9.3(1) Affected: 7.3(2)D1(2) Affected: 8.2(4) Affected: 7.3(0)DY(1) Affected: 9.3(1z) Affected: 9.2(2) Affected: 8.1(2a) Affected: 7.3(2)D1(3) Affected: 8.1(1a) Affected: 8.4(1a) Affected: 9.3(3) Affected: 7.3(2)D1(1d) Affected: 9.3(4) Affected: 7.3(6)D1(1) Affected: 8.2(6) Affected: 9.3(5) Affected: 8.4(2a) Affected: 8.4(2b) Affected: 8.5(1) Affected: 9.3(6) Affected: 8.4(4) Affected: 7.3(7)D1(1) Affected: 8.4(2c) Affected: 9.3(5w) Affected: 8.2(7) Affected: 9.3(7) Affected: 9.3(7k) Affected: 7.3(8)D1(1) Affected: 9.3(7a) Affected: 8.2(7a) Affected: 9.3(8) Affected: 8.4(4a) Affected: 8.4(2d) Affected: 8.4(5) Affected: 8.2(8) Affected: 9.3(9) Affected: 7.3(9)D1(1) Affected: 8.4(6) Affected: 8.4(2e) Affected: 9.3(10) Affected: 9.2(1a) Affected: 8.2(9) Affected: 10.3(1) Affected: 8.4(7) Affected: 10.3(2) Affected: 8.4(6a) Affected: 9.3(11) Affected: 10.3(3) Affected: 9.4(1) Affected: 9.3(2a) Affected: 8.4(2f) Affected: 8.2(10) Affected: 9.3(12) Affected: 10.4(1) Affected: 8.4(8) Affected: 10.3(99w) Affected: 10.3(3w) Affected: 10.3(99x) Affected: 10.3(3o) Affected: 8.4(9) Affected: 10.3(4) Affected: 10.3(3p) Affected: 10.3(4a) Affected: 9.4(1a) Affected: 10.4(2) Affected: 10.3(3q) Affected: 9.3(13) Affected: 8.2(11) Affected: 9.4(2) Affected: 10.3(5) Affected: 10.4(3) Affected: 10.3(3x) Affected: 10.3(4g) Affected: 10.5(1) Affected: 8.4(10) Affected: 9.4(2a) Affected: 10.3(3r) Affected: 10.3(6) Affected: 9.3(14) Affected: 10.4(4) Affected: 10.3(4h) Affected: 10.5(2) Affected: 8.4(11) Affected: 9.4(3) Affected: 10.3(7) Affected: 10.4(5) Affected: 10.5(3) Affected: 9.3(15) Affected: 9.4(3a) Affected: 10.4(4g) Affected: 10.5(4) Affected: 9.4(3b) Affected: 8.4(12) Affected: 10.6(1) Affected: 10.5(3t) Affected: 10.3(8) Affected: 10.4(6) Affected: 10.5(3s) Affected: 10.5(3e) Affected: 9.4(4) Affected: 10.5(3o) Affected: 9.3(16) Affected: 10.6(1s) Affected: 10.6(2) Affected: 10.5(3p) Affected: 9.4(5) Affected: 10.3(9) Affected: 10.6(2s) Affected: 8.4(13) Affected: 10.6(3) Affected: 10.4(7) Affected: 10.5(5) Affected: 9.3(17) Affected: 10.6(2n) Affected: 10.6(3s) |
{
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"id": "CVE-2026-20032",
"options": [
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"timestamp": "2026-10-07T19:11:36.624822Z",
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"cna": {
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{
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{
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{
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
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{
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"version": "8.4(5)"
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{
"status": "affected",
"version": "8.2(8)"
},
{
"status": "affected",
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{
"status": "affected",
"version": "7.3(9)D1(1)"
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{
"status": "affected",
"version": "8.4(6)"
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"status": "affected",
"version": "8.4(2e)"
},
{
"status": "affected",
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{
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},
{
"status": "affected",
"version": "8.2(9)"
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{
"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",
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{
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"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\u0026nbsp;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."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-653",
"description": "Improper Isolation or Compartmentalization",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T16:11:55.157Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-nxos-mppe-dhKZAFgb",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb"
}
],
"source": {
"advisory": "cisco-sa-nxos-mppe-dhKZAFgb",
"defects": [
"CSCws98543"
],
"discovery": "INTERNAL"
},
"title": "Cisco NX-OS Software Python Sandbox Escape Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20032",
"datePublished": "2026-10-07T16:11:55.157Z",
"dateReserved": "2025-10-08T11:59:15.353Z",
"dateUpdated": "2026-10-07T19:23:47.285Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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