NVD

CVE-2026-57032 Detail

Description

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

Nist CVSS score does not match with CNA score

CNA: Juniper Networks, Inc.

CVSS-B 7.1 HIGH

Vector: 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

CVSS 3.x Severity and Vector Strings:

CNA: Juniper Networks, Inc.

Base Score: 6.5 MEDIUM

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://supportportal.juniper.net/JSA110092	Juniper Networks, Inc.	Mitigation Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-236	Improper Handling of Undefined Parameters	Juniper Networks, Inc.

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Change History

3 change records found show changes

Initial Analysis by NIST 7/13/2026 4:07:12 PM

Action

Type

Old Value

New Value

Added

CPE Configuration

Record truncated, showing 2048 of 2624 characters.
View Entire Change Record

AND
     OR
          *cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.4:r1-s3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r2-s1:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r2-s2:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.2:r2-s5:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:24.2:r2-s3:*:*:*:*:*:*
          *cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* versions up to (excluding) 23.2
          *cpe:2.3:o:juniper:junos:23.2:r2-s6:*:*:*:*:*:*
          *cpe:2.3

Added

Reference Type

Juniper Networks, Inc.: https://supportportal.juniper.net/JSA110092 Types: Mitigation, Vendor Advisory

New CVE Received from Juniper Networks, Inc. 7/09/2026 6:17:09 PM

Action	Type	New Value
Added	Description	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.
Added	CVSS V4.0	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
Added	CVSS V3.1	AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added	CWE	CWE-236
Added	Reference	https://supportportal.juniper.net/JSA110092
Added	Affected	[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","platforms":["EX3400","EX4100","EX4400","EX2300","EX4000"],"versions":[{"version":"0","lessThan":"23.2R2-S7","versionType":"custom","status":"affected"},{"version":"23.4","lessThan":"23.4R2-S8","versionType":"custom","status":"affected"},{"version":"24.2","lessThan":"24.2R2-S5","versionType":"custom","status":"affected"},{"version":"24.4","lessThan":"24.4R2","versionType":"custom","status":"affected"}]}]

Quick Info

CVE Dictionary Entry:
CVE-2026-57032
NVD Published Date:
07/09/2026
NVD Last Modified:
07/13/2026
Source:
Juniper Networks, Inc.

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