l2ald
daemon of Juniper Networks Junos OS and Junos OS Evolved devices configured for MC-LAG/ICCP allows an adjacent attacker to cause a denial of service via an inconsistent ICCP peer message.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | unaffected |
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| Juniper Networks | Junos OS Evolved | unaffected |
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Vendor Solution
The following software releases have been updated to resolve this specific issue: Junos OS: 23.2R2-S7.7, 23.4R2-S8.13, 24.2R2-S5.5, 24.2R2-S6, 24.4R2-S5, 25.2R2-S2, 25.4R1-S3, 25.4R2, 26.2R1-S2, 26.2R2, 26.4R1, and all subsequent releases; Junos OS Evolved: 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.2R2-S6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 25.4R2-EVO, 26.2R2-EVO, 26.4R1-EVO, and all subsequent releases. Note: For Junos OS releases 23.2, 23.4, and 24.2, and Junos OS Evolved releases 23.2-EVO, 23.4-EVO, and 24.2-EVO, specific respins have been referenced. Previously published versions of these releases have been rebuilt to resolve the security vulnerabilities identified in this advisory.
Vendor Workaround
There are no known workarounds for this issue.
Tracking
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| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA112187 |
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Wed, 14 Oct 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Reachable Assertion vulnerability in the l2ald daemon of Juniper Networks Junos OS and Junos OS Evolved devices configured for MC-LAG/ICCP allows an adjacent attacker to cause a denial of service via an inconsistent ICCP peer message. | |
| Title | Junos OS and Junos OS Evolved: An inconsistent ICCP peer message causes an l2ald crash when MC-LAG is configured | |
| Weaknesses | CWE-617 | |
| References |
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| Metrics |
cvssV3_1
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2026-10-14T16:30:19.794Z
Reserved: 2026-09-28T16:31:35.505Z
Link: CVE-2026-101996
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-14T17:17:52.580
Modified: 2026-10-14T17:17:52.580
Link: CVE-2026-101996
Redhat
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OpenCVE Enrichment
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CWE-617
Reachable Assertion