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CVE-2026-33773 is a medium severity vulnerability with a CVSS score of 5.8. No known exploits currently, and patches are available.
Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
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:
No other Junos OS versions are affected.
| Vendor | Product |
|---|---|
| Juniper | Qfx10016 |
| Juniper |
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
| Qfx5240 |
| Juniper | Ex4100 F |
| Juniper | Qfx5220 |
| Juniper | Qfx5200 |
| Juniper | Qfx5110 |
| Juniper | Qfx5130 |
| Juniper | Ex9208 |
| Juniper | Qfx5241 |
| Juniper | Qfx5120 |
And 17 more...