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CVE-2017-10611

Junos: EX Series PFE and MX MPC7E/8E/9E PFE crash when fetching interface stats with 'extended-statistics' enabled

Medium6.5EPSS 0.88%
Published
Updated
Reserved
Assigned by
juniper

Description

If extended statistics are enabled via 'set chassis extended-statistics', when executing any operation that fetches interface statistics, including but not limited to SNMP GET requests, the pfem process or the FPC may crash and restart. Repeated crashes of PFE processing can result in an extended denial of service condition. This issue only affects the following platforms: (1) EX2200, EX3300, XRE200 (2) MX Series routers with MPC7E/8E/9E PFEs installed, and only if 'extended-statistics' are enabled under the [edit chassis] configuration. Affected releases are Juniper Networks Junos OS 14.1 prior to 14.1R8-S5, 14.1R9 on MX Series; 14.1X53 prior to 14.1X53-D46, 14.1X53-D50 on EX2200, EX3300, XRE200; 14.2 prior to 14.2R7-S9, 14.2R8 on MX Series; 15.1 prior to 15.1F5-S8, 15.1F6-S8, 15.1R5-S3, 15.1R6 on MX Series; 16.1 prior to 16.1R4-S5, 16.1R5, 16.1R6 on MX Series; 16.1X65 prior to 16.1X65-D45 on EX2200, EX3300, XRE200; 16.2 prior to 16.2R2-S1, 16.2R3 on MX Series; 17.1 prior to 17.1R2-S2, 17.1R3 on MX Series; 17.2 prior to 17.2R1-S3, 17.2R2 on MX Series; 17.2X75 prior to 17.2X75-D50 on MX Series; 17.3 prior to 17.3R1-S1, 17.3R2 on MX Series. No other Juniper Networks products or platforms are affected by this issue.

Scores

CVSS scores of CVE-2017-10611, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)3.0Medium6.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.0Medium5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.88% · top 41% of all CVEs (5 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

  • Denial of service

Affected products

  • Juniper Networks · Junos OS

    • affected 14.1 prior to 14.1R8-S5, 14.1R9
    • affected 14.2 prior to 14.2R7-S9, 14.2R8
    • affected 15.1 prior to 15.1F5-S8, 15.1F6-S8, 15.1R5-S3, 15.1R6
    • affected 16.1 prior to 16.1R4-S5, 16.1R5, 16.1R6
    • affected 16.2 prior to 16.2R2-S1, 16.2R3
    • affected 17.1 prior to 17.1R2-S2, 17.1R3
    • affected 17.2 prior to 17.2R1-S3, 17.2R2
    • affected 17.2X75 prior to 17.2X75-D50
    • affected 17.3 prior to 17.3R1-S1, 17.3R2

  • Juniper Networks · Junos OS

    • affected 14.1X53 prior to 14.1X53-D46, 14.1X53-D50
    • affected 16.1X65 prior to 16.1X65-D45

What to do

Workaround: Disable chassis extended-statistics. Use access lists or firewall filters to limit access to the router via SNMP or CLI only from trusted hosts and administrators.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .