CVE-2026-21903 Detail
Awaiting Analysis
This CVE record has been marked for NVD enrichment efforts. DescriptionA Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service (DoS). Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting in an FPC crash and restart. The issue was not seen when YANG packages for the specific sensors were installed. This issue affects Junos OS: * all versions before 22.4R3-S7, * 23.2 version before 23.2R2-S4, * 23.4 versions before 23.4R2. Metrics
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-21903 NVD Published Date: 01/15/2026 NVD Last Modified: 01/16/2026 Source: Juniper Networks, Inc. |
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