CVE-2017-10619

Junos: SRX cluster denial of service vulnerability in flowd due to multicast packets

HIGH
7.5
CVSS Score
Published: October 13, 2017 at 05:00 PM UTC
Updated: June 17, 2026 at 01:00 AM UTC
7 products affected across 2 vendorsJunosSRX5600SRX5800

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 12.3X48-D45v < 15.1X49-D8012.3x4815.1x49
Affected range stops below 12.3X48-D45, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1X49-D80, so it looks safe — our inference, not a vendor statement
juniper-srx1400 (environment) · juniper-srx3400 (environment) · juniper-srx3600 (environment) · juniper-srx5400 (environment) · juniper-srx5600 (environment) · juniper-srx5800 (environment)
All versions
All versions
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
https://kb.juniper.net/JSA10821

CVSS

7.5HIGHjuniper
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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