High severity · published Oct 14, 2026
CVE-2026-101965
Junos OS Evolved: An attacker causes telemetry disruption when network analytics telemetry is enabled
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
An Use of Externally-Controlled Format String vulnerability in the gRPC daemon of Juniper Networks Junos OS Evolved allows an authenticated network attacker to cause telemetry-service disruption, information disclosure, or potential root-level code execution via a crafted message to the gNMI service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS Evolved · Juniper Networks
24.4 before 24.4R2-S5-EVO; 25.2 before 25.2R2-S2-EVO; 25.4 before 25.4R1-S3-EVO; 26.2 before 26.2R1-S2-EVO; 23.4X100; 25.2X100 before 25.2X100-D35-EVO; +1 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-101965
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-101965
vendor-advisory
https://supportportal.juniper.net/JSA112250
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