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CVE-2026-33778 is a high severity vulnerability with a CVSS score of 7.5. 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 Improper Validation of Syntactic Correctness of Input vulnerability in the IPsec library used by kmd and iked of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS).
If an affected device receives a specifically malformed first ISAKMP packet from the initiator, the kmd/iked process will crash and restart, which momentarily prevents new security associations (SAs) for from being established. Repeated exploitation of this vulnerability causes a complete inability to establish new VPN connections.
This issue affects Junos OS on
SRX Series and MX Series:
| Vendor | Product |
|---|---|
| Juniper | Junos |
| Juniper |
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
| Srx2300 |
| Juniper | Srx380 |
| Juniper | Mx10004 |
| Juniper | Srx4600 |
| Juniper | Srx300 |
| Juniper | Srx4120 |
| Juniper | Srx4300 |
| Juniper | Mx480 |
| Juniper | Srx4100 |
And 19 more...