SB20260408178 - Function call with incorrect argument type in Junos OS Evolved
Published: April 8, 2026
Security Bulletin ID
SB20260408178
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Function call with incorrect argument type (CVE-ID: CVE-2026-33783)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to function call with incorrect argument type error in the sensor interface. A remote user can cause a complete Denial of Service (DoS).
If colored SRTE policy tunnels are provisioned via PCEP, and gRPC is used to monitor traffic in these tunnels, evo-aftmand crashes and doesn't restart which leads to a complete and persistent service impact.
The system has to be manually restarted to recover.
Remediation
Install update from vendor's website.