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CVE-2016-4925

JUNOSe: Line Card Reset: processor exception 0x68616c74 (halt) task: scheduler, upon receipt of crafted IPv6 packet

High7.5EPSS 2.7%
Published
Updated
Reserved
Assigned by
juniper

Description

Receipt of a specifically malformed IPv6 packet processed by the router may trigger a line card reset: processor exception 0x68616c74 (halt) in task: scheduler. The line card will reboot and recover without user interaction. However, additional specifically malformed packets may cause follow-on line card resets and lead to an extended service outage. This issue only affects E Series routers with IPv6 licensed and enabled. Routers not configured to process IPv6 traffic are unaffected by this vulnerability. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue.

Scores

CVSS scores of CVE-2016-4925, by who scored it
Scored byCVSSScoreVector
juniperCNA (assigner)3.0High7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.0High7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
2.7% · top 14% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Juniper Networks · JunosE

    • affected 10.3 prior to 10.3.3p0-15
    • affected 12.3 prior to 12.3.3p0-6
    • affected 13.3 prior to 13.3.3p0-1
    • affected 14.3 prior to 14.3.2

What to do

Workaround: No known workaround exists for this issue.

References (3)

Sources

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

Record last updated .