CVE-2024-39533
Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions
ip-source-address ip-destination-address arp-type
which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect.
This issue affects Junos OS on QFX5000 Series and EX4600 Series:
- All version before 21.2R3-S7,
- 21.4 versions before 21.4R3-S6,
- 22.1 versions before 22.1R3-S5,
- 22.2 versions before 22.2R3-S3,
- 22.3 versions before 22.3R3-S2,
- 22.4 versions before 22.4R3,
- 23.2 versions before 23.2R2.
Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions
ip-source-address ip-destination-address arp-type
which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect.
This issue affects Junos OS on QFX5000 Series and EX4600 Series:
- All version before 21.2R3-S7,
- 21.4 versions before 21.4R3-S6,
- 22.1 versions before 22.1R3-S5,
- 22.2 versions before 22.2R3-S3,
- 22.3 versions before 22.3R3-S2,
- 22.4 versions before 22.4R3,
- 23.2 versions before 23.2R2.
Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.
- Record
CVE-2024-39533- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N - CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-447
- Updated
- 2026-11-02
EUVDEUVD-2024-38059
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions
ip-source-address ip-destination-address arp-type
which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect.
This issue affects Junos OS on QFX5000 Series and EX4600 Series:
- All version before 21.2R3-S7,
- 21.4 versions before 21.4R3-S6,
- 22.1 versions before 22.1R3-S5,
- 22.2 versions before 22.2R3-S3,
- 22.3 versions before 22.3R3-S2,
- 22.4 versions before 22.4R3,
- 23.2 versions before 23.2R2.
Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.
- Record
EUVD-2024-38059- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5qpv-687p-m54h
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on...
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions
ip-source-address ip-destination-address arp-type
which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect.
This issue affects Junos OS on QFX5000 Series and EX4600 Series:
- All version before 21.2R3-S7,
- 21.4 versions before 21.4R3-S6,
- 22.1 versions before 22.1R3-S5,
- 22.2 versions before 22.2R3-S3,
- 22.3 versions before 22.3R3-S2,
- 22.4 versions before 22.4R3,
- 23.2 versions before 23.2R2.
Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.
- Record
GHSA-5qpv-687p-m54h- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/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:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-447
- Updated
- 2026-11-02
NVD
An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions
ip-source-address ip-destination-address arp-type
which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect.
This issue affects Junos OS on QFX5000 Series and EX4600 Series:
- All version before 21.2R3-S7,
- 21.4 versions before 21.4R3-S6,
- 22.1 versions before 22.1R3-S5,
- 22.2 versions before 22.2R3-S3,
- 22.3 versions before 22.3R3-S2,
- 22.4 versions before 22.4R3,
- 23.2 versions before 23.2R2.
Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.
- Record
CVE-2024-39533- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/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:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.8 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-447
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-39533 is a medium vulnerability (CVSS 6.9) in Juniper Junos, published July 11, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.