CVE-2025-52946
Scores
EPSS
Percentile: 0.0%
CVSS
CVSS Score: 8.7/10
All CVSS Scores
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Attack Requirements
None
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Vulnerable System Confidentiality
None (N)
Measures the impact to the confidentiality of information
Vulnerable System Integrity
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Vulnerable System Availability
High (H)
Measures the impact to the availability of the impacted component
Subsequent System Confidentiality
None (N)
Measures the impact to the confidentiality of information
Subsequent System Integrity
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Subsequent System Availability
Low (L)
Measures the impact to the availability of the impacted component
Temporal Metrics
Exploit Code Maturity
Not Defined
Environmental Metrics
Confidentiality Requirement
Not Defined
Integrity Requirement
Not Defined
Availability Requirement
Not Defined
Modified Attack Vector
Not Defined
Describes how the vulnerability is exploited
Modified Attack Complexity
Not Defined
Describes the conditions beyond the attacker's control
Modified Attack Requirements
Not Defined
Modified Privileges Required
Not Defined
Describes the level of privileges an attacker must possess
Modified User Interaction
Not Defined
Captures the requirement for a human user participation
Modified Vulnerable System Confidentiality
Not Defined
Measures the impact to the confidentiality of information
Modified Vulnerable System Integrity
Not Defined
Measures the impact to integrity of a successfully exploited vulnerability
Modified Vulnerable System Availability
Not Defined
Measures the impact to the availability of the impacted component
Modified Subsequent System Confidentiality
Not Defined
Measures the impact to the confidentiality of information
Modified Subsequent System Integrity
Not Defined
Measures the impact to integrity of a successfully exploited vulnerability
Modified Subsequent System Availability
Not Defined
Measures the impact to the availability of the impacted component
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Description
A Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an attacker sending a BGP update with a specifically malformed AS PATH to cause rpd to crash, resulting in a Denial of Service (DoS). Continuous receipt of the malformed AS PATH attribute will cause a sustained DoS condition.
On all Junos OS and Junos OS Evolved platforms, the rpd process will crash and restart when a specifically malformed AS PATH is received within a BGP update and traceoptions are enabled.
This issue only affects systems with BGP traceoptions enabled and requires a BGP session to be already established. Systems without BGP traceoptions enabled are not impacted by this issue.
This issue affects:
Junos OS:
- All versions before 21.2R3-S9,
- all versions of 21.4,
- from 22.2 before 22.2R3-S6,
- from 22.4 before 22.4R3-S5,
- from 23.2 before 23.2R2-S3,
- from 23.4 before 23.4R2-S4,
- from 24.2 before 24.2R2;
Junos OS Evolved:
- All versions before 22.4R3-S5-EVO,
- from 23.2-EVO before 23.2R2-S3-EVO,
- from 23.4-EVO before 23.4R2-S4-EVO,
- from 24.2-EVO before 24.2R2-EVO.
This is a more complete fix for previously published CVE-2024-39549 (JSA83011).