SB2025071823 - Protection mechanism failure in Juniper Junos OS
Published: July 18, 2025
Security Bulletin ID
SB2025071823
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection mechanism failure (CVE-ID: CVE-2025-52951)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to corrupt data.
The vulnerability exists due to protection mechanism failure error in IPv6 firewall filter. A remote non-authenticated attacker can an interface to effectively bypass any firewall filtering configured on the interface.
Remediation
Install update from vendor's website.