Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-33773 Details

Description

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unauthenticated, network-based attacker to cause an integrity impact to downstream networks. When the same family inet or inet6 filter is applied on an IRB interface and on a physical interface as egress filter on EX4100, EX4400, EX4650 and QFX5120 devices, only one of the two filters will be applied, which can lead to traffic being sent out one of these interfaces which should have been blocked. This issue affects Junos OS on EX Series and QFX Series: * 23.4 version 23.4R2-S6, * 24.2 version 24.2R2-S3. No other Junos OS versions are affected.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.8 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://kb.juniper.net/JSA107815	[email protected]	MitigationVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]

Affected Products

Product	Versions
juniper junos	23.4 r2-s6 24.2 r2-s3
CPE cpe:2.3:o:juniper:junos:23.4:r2-s6:::::: cpe:2.3:o:juniper:junos:24.2:r2-s3:::::: Remediation No remediation found in references.
juniper ex2300	All versions
CPE cpe:2.3:h:juniper:ex2300:-:::::::* Remediation No remediation found in references.
juniper ex2300-c	All versions
CPE cpe:2.3:h:juniper:ex2300-c:-:::::::* Remediation No remediation found in references.
juniper ex3400	All versions
CPE cpe:2.3:h:juniper:ex3400:-:::::::* Remediation No remediation found in references.
juniper ex4000	All versions
CPE cpe:2.3:h:juniper:ex4000:-:::::::* Remediation No remediation found in references.
juniper ex4100	All versions
CPE cpe:2.3:h:juniper:ex4100:-:::::::* Remediation No remediation found in references.
juniper ex4100-f	All versions
CPE cpe:2.3:h:juniper:ex4100-f:-:::::::* Remediation No remediation found in references.
juniper ex4100-h	All versions
CPE cpe:2.3:h:juniper:ex4100-h:-:::::::* Remediation No remediation found in references.
juniper ex4300	All versions
CPE cpe:2.3:h:juniper:ex4300:-:::::::* Remediation No remediation found in references.
juniper ex4400	All versions
CPE cpe:2.3:h:juniper:ex4400:-:::::::* Remediation No remediation found in references.
juniper ex4600	All versions
CPE cpe:2.3:h:juniper:ex4600:-:::::::* Remediation No remediation found in references.
juniper ex4650	All versions
CPE cpe:2.3:h:juniper:ex4650:-:::::::* Remediation No remediation found in references.
juniper ex9204	All versions
CPE cpe:2.3:h:juniper:ex9204:-:::::::* Remediation No remediation found in references.
juniper ex9208	All versions
CPE cpe:2.3:h:juniper:ex9208:-:::::::* Remediation No remediation found in references.
juniper ex9214	All versions
CPE cpe:2.3:h:juniper:ex9214:-:::::::* Remediation No remediation found in references.
juniper qfx10008	All versions
CPE cpe:2.3:h:juniper:qfx10008:-:::::::* Remediation No remediation found in references.
juniper qfx10016	All versions
CPE cpe:2.3:h:juniper:qfx10016:-:::::::* Remediation No remediation found in references.
juniper qfx5110	All versions
CPE cpe:2.3:h:juniper:qfx5110:-:::::::* Remediation No remediation found in references.
juniper qfx5120	All versions
CPE cpe:2.3:h:juniper:qfx5120:-:::::::* Remediation No remediation found in references.
juniper qfx5130	All versions
CPE cpe:2.3:h:juniper:qfx5130:-:::::::* Remediation No remediation found in references.
juniper qfx5200	All versions
CPE cpe:2.3:h:juniper:qfx5200:-:::::::* Remediation No remediation found in references.
juniper qfx5210	All versions
CPE cpe:2.3:h:juniper:qfx5210:-:::::::* Remediation No remediation found in references.
juniper qfx5220	All versions
CPE cpe:2.3:h:juniper:qfx5220:-:::::::* Remediation No remediation found in references.
juniper qfx5230-64cd	All versions
CPE cpe:2.3:h:juniper:qfx5230-64cd:-:::::::* Remediation No remediation found in references.
juniper qfx5240	All versions
CPE cpe:2.3:h:juniper:qfx5240:-:::::::* Remediation No remediation found in references.
juniper qfx5241	All versions
CPE cpe:2.3:h:juniper:qfx5241:-:::::::* Remediation No remediation found in references.
juniper qfx5700	All versions
CPE cpe:2.3:h:juniper:qfx5700:-:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 17, 2026	Initial Analysis	[email protected]
Apr 9, 2026	New CVE Received	[email protected]

CVE-2026-33773 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

QUICK INFO