Common Weakness Enumeration

CWE-236

Allowed

Improper Handling of Undefined Parameters

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product does not handle or incorrectly handles when a particular parameter, field, or argument name is not defined or supported by the product.

3 vulnerabilities reference this CWE, most recent first.

CVE-2026-57032 (GCVE-0-2026-57032)

Vulnerability from cvelistv5 – Published: 2026-07-09 21:14 – Updated: 2026-07-10 14:34
VLAI
Title
Junos OS: EX Series: Subscribing to an unsupported telemetry sensor path causes fxpc process crash
Summary
An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS). If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.  The following log message can be seen when this issue happens: agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor> This issue affects Junos OS on EX2300, EX3400, EX4000, EX4100 and EX4400 devices: * all versions before 23.2R2-S7, * 23.4 versions before 23.4R2-S8, * 24.2 versions before 24.2R2-S5, * 24.4 versions before 24.4R2.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-236 - Improper Handling of Undefined Parameters
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 0 , < 23.2R2-S7 (custom)
Affected: 23.4 , < 23.4R2-S8 (custom)
Affected: 24.2 , < 24.2R2-S5 (custom)
Affected: 24.4 , < 24.4R2 (custom)
Create a notification for this product.
Date Public
2026-07-08 16:00
Show details on NVD website
To clipboard 

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CVE-2022-20828 (GCVE-0-2022-20828)

Vulnerability from cvelistv5 – Published: 2022-06-24 15:25 – Updated: 2024-11-01 19:00
VLAI
Title
Cisco FirePOWER Software for ASA FirePOWER Module Command Injection Vulnerability
Summary
A vulnerability in the CLI parser of Cisco FirePOWER Software for Adaptive Security Appliance (ASA) FirePOWER module could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected ASA FirePOWER module as the root user. This vulnerability is due to improper handling of undefined command parameters. An attacker could exploit this vulnerability by using a crafted command on the CLI or by submitting a crafted HTTPS request to the web-based management interface of the Cisco ASA that is hosting the ASA FirePOWER module. Note: To exploit this vulnerability, the attacker must have administrative access to the Cisco ASA. A user who has administrative access to a particular Cisco ASA is also expected to have administrative access to the ASA FirePOWER module that is hosted by that Cisco ASA.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Date Public
2022-06-22 00:00
Show details on NVD website
To clipboard 

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GHSA-HP6X-WHRH-RG9M

Vulnerability from github – Published: 2026-07-10 00:31 – Updated: 2026-07-10 00:31
VLAI
Details

An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).

If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted. 

The following log message can be seen when this issue happens:

agentd[]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for

This issue affects Junos OS on

EX2300, EX3400, EX4000, EX4100 and EX4400

devices:

  • all versions before 23.2R2-S7,
  • 23.4 versions before 23.4R2-S8,
  • 24.2 versions before 24.2R2-S5,
  • 24.4 versions before 24.4R2.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M
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{
  "affected": [],
  "aliases": [
    "CVE-2026-57032"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-236"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-09T22:17:09Z",
    "severity": "HIGH"
  },
  "details": "An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).\n\nIf an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300,\u00a0EX3400,\u00a0EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.\u00a0\n\nThe following log message can be seen when this issue happens:\n\nagentd[\u003cPID\u003e]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for \u003csensor\u003e\n\n\nThis issue affects Junos OS on \n\nEX2300, EX3400, EX4000, EX4100 and EX4400\n\ndevices:\n\n\n  *  all versions before 23.2R2-S7,\n  *  23.4 versions before 23.4R2-S8,\n  *  24.2 versions before  24.2R2-S5,\n  *  24.4 versions before 24.4R2.",
  "id": "GHSA-hp6x-whrh-rg9m",
  "modified": "2026-07-10T00:31:27Z",
  "published": "2026-07-10T00:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57032"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA110092"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X",
      "type": "CVSS_V4"
    }
  ]
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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