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CVE Record

CVE-2017-10605: Junos: SRX Series denial of service vulnerability in flowd due to crafted DHCP packet

On all vSRX and SRX Series devices, when the DHCP or DHCP relay is configured, specially crafted packet might cause the flowd process to crash, halting or interrupting traffic from flowing through the device(s). Repeated crashes of the flowd process may constitute an extended denial of service condition for the device(s). If the device is configured in high-availability, the RG1+ (data-plane) will fail-over to the secondary node. If the device is configured in stand-alone, there will be temporary traffic interruption until the flowd process is restored automatically. Sustained crafted packets may cause the secondary failover node to fail back, or fail completely, potentially halting flowd on both nodes of the cluster or causing flip-flop failovers to occur. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.1X46 prior to 12.1X46-D67 on vSRX or SRX Series; 12.3X48 prior to 12.3X48-D50 on vSRX or SRX Series; 15.1X49 prior to 15.1X49-D91, 15.1X49-D100 on vSRX or SRX Series.

HighCVSS 8.6Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

A crafted DHCP-related network packet can crash the traffic-handling process on Juniper SRX and vSRX firewalls running affected Junos OS versions. The likely business impact is service disruption: traffic can pause on standalone devices or trigger failover instability in high-availability clusters. Exposure is limited to Juniper SRX Series and vSRX devices on affected Junos OS 12.1X46, 12.3X48, and 15.1X49 releases with DHCP or DHCP relay configured. The source states no other Juniper products or platforms are affected. Treat this as high priority for edge or core firewall environments using DHCP services. The issue is availability-focused rather than data theft, but a successful attack can interrupt business traffic through affected firewalls. Mitigation focus: Upgrade affected SRX or vSRX systems to the fixed Junos releases identified by Juniper.; Review Juniper JSA10789 for exact supported fix guidance before scheduling changes.; Disable DHCP or DHCP relay where it is not operationally required and change control permits..

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Potential ATT&CK relevance

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CVE-2017-10605 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H3.94Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.6High
CVSS 3.0 vector shape for CVE-2017-10605Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Juniper NetworksJunos OS12.1X46 prior to 12.1X46-D67, 12.3X48 prior to 12.3X48-D50, 15.1X49 prior to 15.1X49-D91, 15.1X49-D100Listed
Weakness

CWE details

No CWE listed

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