CVE-2026-102080
CVE-2026-102080 · Junos OS: MX Series: Malformed SyncE or PTP clock input causes continuous RE switchover
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An Improper Resource Locking vulnerability in the clock synchronization daemon (clksyncd) of Juniper Networks Junos OS on MX Series allows a unauthenticated, logically adjacent attacker to cause a Denial-of-Service (DoS). If a SyncE or PTP upstream node sends a malformed message to an MX device equipped with SCBE3, a false 19.44MHz alarm is generated on the master RE. This leads to persistent RE switchovers and a clksyncd process crash. This issue is outside the attacker's direct control as it's a race condition. This issue affects Junos OS on MX Series: * All versions before 23.2R2-S7.7; * 23.4 versions before 23.4R2-S8.13; * 24.2 versions before 24.2R2-S5.5; * 24.4 versions before 24.4R2-S4; * 25.2 versions before 25.2R2-S1; * 25.4 versions before 25.4R1-S2.
CVSS 6.0 · Moyenne · EPSS 0,2% · Correctif disponible
- Publication
- Mise à jour
Produits et versions concernés
junos os
- Versions du logiciel
- ≥ 0, < 23.2R2-S7.7: Concernée (custom)
- ≥ 23.4, < 23.4R2-S8.13: Concernée (custom)
- ≥ 24.2, < 24.2R2-S5.5: Concernée (custom)
- ≥ 24.4, < 24.4R2-S4: Concernée (custom)
- ≥ 25.2, < 25.2R2-S1: Concernée (custom)
- ≥ 25.4, < 25.4R1-S2: Concernée (custom)
Mettez à jour vers 23.2R2-S7.7