vulnerability
Juniper Junos OS: 2026-01 Security Bulletin: Junos OS: Subscribing to telemetry sensors at scale causes all FPCs to crash (JSA106022) (CVE-2026-21903)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:N/I:N/A:C) | Jan 14, 2026 | Jan 27, 2026 | Jan 27, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Jan 14, 2026
Added
Jan 27, 2026
Modified
Jan 27, 2026
Description
A 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).
Solution
juniper-junos-os-upgrade-latest
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