CVE-2026-101960

Junos OS Evolved: QFX Series: A BGP peer causes an rpd crash when global load balancing is enabled

State: Published
Severity: 7.1 High
Published: Oct 14, 2026
Updated: Oct 14, 2026
Reserved: Sep 28, 2026

Description

An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS Evolved on QFX5240, QFX5241 and QFX5250 configured for BGP global-load-balancing and more than 128 ecmp next-hops allows an attacker to cause an rpd crash.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	juniper
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	juniper

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
Junos OS EvolvedJuniper Networks	23.4 to before 23.4R2-S8.11-EVOAffected 24.2 to before 24.2R2-S5.6-EVOAffected 24.4 to before 24.4R2-S5-EVOAffected 25.2 to before 25.2R2-S2-EVOAffected 25.4 to before 25.4R1-S3-EVOAffected 26.2 to before 26.2R1-S2-EVOAffected 23.4X100Affected 25.2X100 to before 25.2X100-D35-EVOAffected 25.4X300 to before 25.4X300-D40-EVOAffected

References

https://supportportal.juniper.net/JSA112250vendor-advisory

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