All vulnerabilities
CVE-2026-101966

Junos OS Evolved: A crafted analytics sensor resource causes telemetry dial-out daemon denial of service

Juniper Networks Junos OS EvolvedNetwork & edge
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.43%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in25.4R1-S3-EVOAlso 26.2R1-S2-EVO, 25.2X100-D35-EVO and 1 moreCVE List
Published14 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

A Use of Externally-Controlled Format String vulnerability in the jti-dialoutd of Juniper Networks Junos OS Evolved allows an authenticated network attacker to cause persistent telemetry dial-out denial of service via a crafted analytics sensor resource submitted through gNMI listener.

Text from CVE List

Affected versions 5

  • Junos OS Evolvedaffected: 25.4 before 25.4R1-S3-EVOCVE List
  • Junos OS Evolvedaffected: 26.2 before 26.2R1-S2-EVOCVE List
  • Junos OS Evolvedaffected: 23.4X100CVE List
  • Junos OS Evolvedaffected: 25.2X100 before 25.2X100-D35-EVOCVE List
  • Junos OS Evolvedaffected: 25.4X300 before 25.4X300-D40-EVOCVE List

References 1