An Improper Validation of Syntactic Correctness of Input vulnerability in the SIP plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).If the SIP ALG is enabled on an affected device, the processing of a malformed SIP invite packet will cause a flow processing daemon (flowd) crash and restart. This leads to a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX Series with SPC3 and SRX Series:
* 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-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S2.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA110086 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
No history.
Information
Published : 2026-07-09 22:17
Updated : 2026-07-14 15:03
NVD link : CVE-2026-57026
Mitre link : CVE-2026-57026
CVE.ORG link : CVE-2026-57026
JSON object : View
Products Affected
juniper
- srx4120
- srx320
- srx4200
- srx5800
- srx4700
- srx345
- srx440
- mx240
- srx1500
- srx340
- srx2300
- srx4600
- srx400
- mx-spc3
- srx300
- srx5400
- srx4100
- srx1600
- srx380
- srx4300
- mx960
- srx5600
- mx480
- junos
CWE
CWE-1286
Improper Validation of Syntactic Correctness of Input