CVE-2026-21912

A Time-of-check Time-of-use TOCTOU Race Condition vulnerability in the method to collect FPC Ethernet firmware statistics of Juniper Networks Junos OS on MX10k Series allows a local, low-privileged attacker executing the 'show system firmware' CLI command to cause an LC480 or LC2101 line card to...

CVE-2026-21912: Time-of-check Time-of-use (TOCTOU) Race Condition

A Time-of-check Time-of-use TOCTOU Race Condition vulnerability in the method to collect FPC Ethernet firmware statistics of Juniper Networks Junos OS on MX10k Series allows a local, low-privileged attacker executing the 'show system firmware' CLI command to cause an LC480 or LC2101 line card to...