CVE-2026-101965
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductJunos OS Evolved
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-134CWE-134
How to fix
Update
- Juniper Networks Junos OS Evolved24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Juniper Networks Junos OS Evolved | 24.4 ≤ v < 24.4R2-S5-EVO, 25.2 ≤ v < 25.2R2-S2-EVO, 25.4 ≤ v < 25.4R1-S3-EVO, 26.2 ≤ v < 26.2R1-S2-EVO, 23.4X100, 25.2X100 ≤ v < 25.2X100-D35-EVO, 25.4X300 ≤ v < 25.4X300-D40-EVO | 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.4R1-S3-EVO, 26.2R1-S2-EVO, 25.2X100-D35-EVO, 25.4X300-D40-EVO |
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