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CVE-2026-21903

🗓️ 15 Jan 2026 21:16:05Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

CVE-2026-21903: stack overflow in Junos pfe enables DoS by low-privilege attacker; telemetry subscriptions crash FPC; before 22.4R3-S7 and earlier

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CVE-2026-21903 Junos OS: Subscribing to telemetry sensors at scale causes all FPCs to crash
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15 Jan 202620:18
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15 Jan 202621:16
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CVE-2026-21903
16 Jan 202621:33
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CVE-2026-21903 Junos OS: Subscribing to telemetry sensors at scale causes all FPCs to crash
15 Jan 202620:18
vulnrichment
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04 May 2026 08:06Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
EPSS0.00021
2