CVE-2025-52986
Junos OS and Junos OS Evolved: When RIB sharding is configured each time a show command is executed RPD memory leaks
Severity Score
6.8
*CVSS v4
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device. When RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart. The leak can be monitored with the CLI command: show task memory detail | match task_shard_mgmt_cookie where the allocated memory in bytes can be seen to continuously increase with each exploitation. This issue affects: Junos OS: * all versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S11, * 22.2 versions before 22.2R3-S7, * 22.4 versions before 22.4R3-S7, * 23.2 versions before 23.2R2-S4, * 23.4 versions before 23.4R2-S4, * 24.2 versions before 24.2R2, * 24.4 versions before 24.4R1-S2, 24.4R2; Junos OS Evolved: * all versions before 22.2R3-S7-EVO * 22.4-EVO versions before 22.4R3-S7-EVO, * 23.2-EVO versions before 23.2R2-S4-EVO, * 23.4-EVO versions before 23.4R2-S4-EVO, * 24.2-EVO versions before 24.2R2-EVO, * 24.4-EVO versions before 24.4R2-EVO.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
System
Vulnerable | Subsequent
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
System
Vulnerable | Subsequent
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-06-23 CVE Reserved
- 2025-07-11 CVE Published
- 2025-07-15 CVE Updated
- 2025-07-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://supportportal.juniper.net/JSA100092 | 2025-07-11 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | < 21.2R3-S9 Search vendor "Juniper Networks" for product "Junos OS" and version " < 21.2R3-S9" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 21.4 < 21.4R3-S11 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.4 < 21.4R3-S11" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.2 < 22.2R3-S7 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S7" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.4 < 22.4R3-S7 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3-S7" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 23.2 < 23.2R2-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2-S4" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 23.4 < 23.4R2-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R2-S4" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 24.2 < 24.2R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 24.2 < 24.2R2" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 24.4 < 24.4R1-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 24.4 < 24.4R1-S2" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 24.4 < 24.4R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 24.4 < 24.4R2" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | < 22.2R3-S7-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 22.2R3-S7-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.4-EVO < 22.4R3-S7-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-S7-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 23.2-EVO < 23.2R2-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2-EVO < 23.2R2-S4-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 23.4-EVO < 23.4R2-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 23.4R2-S4-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 24.2-EVO < 24.2R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 24.2-EVO < 24.2R2-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 24.4-EVO < 24.4R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 24.4-EVO < 24.4R2-EVO" | en |
Affected
| ||||||