CVE-2023-6729: Nokia SR OS: File Access Security Vulnerability

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-17 · updated 2026-06-17
Weakness: CWE-732

Description

Nokia SR OS routers allow read-write access to the entire file system via SFTP or SCP for users configured with "access console." Consequently, a low privilege authenticated user with "access console" can read or replace the router configuration file as well as other files stored in the Compact Flash or SD card without using CLI commands. This type of attack can lead to a compromise or denial of service of the router after the system is rebooted.

Affected products

Nokia Service Router Operating System: before 24 — fixed in 24

How to fix

Upgrade to a fixed version: Nokia Service Router Operating System 24. Check the vendor advisory for mitigations.

References

https://www.nokia.com/about-us/security-and-privacy/product-security-advisory/cve-2023-6729/

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