Junos: SRX cluster denial of service vulnerability in flowd due to multicast packets
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA.
Summary
When Express Path (formerly known as service offloading) is configured on Juniper Networks SRX1400, SRX3400, SRX3600, SRX5400, SRX5600, SRX5800 in high availability cluster configuration mode, certain multicast packets might cause the flowd process to crash, halting or interrupting traffic from flowing through the device and triggering RG1+ (data-plane) fail-over to the secondary node. Repeated crashes of the flowd process may constitute an extended denial of service condition. This service is not enabled by default and is only supported in high-end SRX platforms. Affected releases are Juniper Networks Junos OS 12.3X48 prior to 12.3X48-D45, 15.1X49 prior to 15.1X49-D80 on SRX1400, SRX3400, SRX3600, SRX5400, SRX5600, SRX5800.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS | 12.3X48 to before 12.3X48-D45; 15.1X49 to before 15.1X49-D80 | 12.3X48-D45, 15.1X49-D80 | Patch available | CNA |
- Junos OS VendorJuniper Affected 12.3X48 to before 12.3X48-D45; 15.1X49 to before 15.1X49-D80 Fixed in 12.3X48-D45, 15.1X49-D80 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:12.3x48:*:*:*:*:*:*:* | 12.3x48 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* | 15.1x49 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:srx1400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx3400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx3600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:12.3x48:*:*:*:*:*:*:* Versions 12.3x48 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* Versions 15.1x49 Vulnerable ·Juniper
- cpe:2.3:h:juniper:srx1400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx3400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx3600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 12.3X48-D45, 15.1X49-D80
Timeline
- 2026-10-02 Threatist record created from CVE-2017-10619
- 2026-10-03 Alias added: GHSA-7x82-gf29-pfxv
References
Advisory 1
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Sources
- CVE-2017-10619 · CVE Program
- CVE-2017-10619 · NVD
- FIRST EPSS
- GHSA-7x82-gf29-pfxv · GitHub Advisory Database · CC BY 4.0
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