An Improper Validation of Specified Quantity in Input vulnerability in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service (DoS).
When TCP proxy is engaged in a flow session, to support ALGs, Advanced Anti-Malware, ICAP or UTM, a TCP packet with specifically malformed TCP header will cause flow processing daemon (flowd) to crash and restart. This causes a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX with SPC3, and SRX Series:
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S3,
* 25.2 versions before 25.2R2.
This issue does not affect releases before 23.4R1.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA110083 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
|
History
14 Jul 2026, 15:19
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://supportportal.juniper.net/JSA110083 - Vendor Advisory | |
| CPE | cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4300:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r2-s3:*:*:*:*:*:* cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4700:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4120:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:25.2:r1-s1:*:*:*:*:*:* cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:25.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r1-s3:*:*:*:*:*:* cpe:2.3:h:juniper:srx1600:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:25.2:r1-s2:*:*:*:*:*:* cpe:2.3:h:juniper:srx345:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx-spc3:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:25.2:-:*:*:*:*:*:* cpe:2.3:h:juniper:srx1500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:* cpe:2.3:h:juniper:srx2300:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r2-s2:*:*:*:*:*:* cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r2-s1:*:*:*:*:*:* cpe:2.3:h:juniper:srx340:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx400:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r2-s2:*:*:*:*:*:* cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx320:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:srx380:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s6:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:* cpe:2.3:h:juniper:srx440:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r2-s1:*:*:*:*:*:* |
|
| First Time |
Juniper srx4100
Juniper srx4200 Juniper srx4700 Juniper srx4600 Juniper Juniper srx5800 Juniper srx400 Juniper srx1600 Juniper srx4120 Juniper srx5600 Juniper junos Juniper srx4300 Juniper mx480 Juniper mx240 Juniper srx5400 Juniper srx1500 Juniper srx345 Juniper srx320 Juniper mx960 Juniper srx2300 Juniper srx380 Juniper srx300 Juniper mx-spc3 Juniper srx440 Juniper srx340 |
09 Jul 2026, 22:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-09 22:17
Updated : 2026-07-14 15:19
NVD link : CVE-2026-57023
Mitre link : CVE-2026-57023
CVE.ORG link : CVE-2026-57023
JSON object : View
Products Affected
juniper
- srx4600
- srx1500
- srx320
- srx4200
- srx4120
- srx2300
- srx340
- junos
- srx400
- srx380
- srx345
- srx4100
- srx4300
- srx5600
- mx960
- mx-spc3
- srx300
- mx480
- srx440
- srx4700
- srx5800
- srx5400
- srx1600
- mx240
CWE
CWE-1284
Improper Validation of Specified Quantity in Input