CVE-2025-30649
Junos OS: MX240, MX480, MX960 with SPC3: An attacker sending specific packets will cause a CPU utilization DoS.
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An Improper Input Validation vulnerability in the syslog stream TCP transport of Juniper Networks Junos OS on MX240, MX480 and MX960 devices with MX-SPC3 Security Services Card allows an unauthenticated, network-based attacker, to send specific spoofed packets to cause a CPU Denial of Service (DoS) to the MX-SPC3 SPUs. Continued receipt and processing of these specific packets will sustain the DoS condition. This issue affects Junos OS: * All versions before 22.2R3-S6, * from 22.4 before 22.4R3-S4, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R1-S2, 24.2R2 An indicator of compromise will indicate the SPC3 SPUs utilization has spiked. For example: user@device> show services service-sets summary Service sets CPU Interface configured Bytes used Session bytes used Policy bytes used utilization "interface" 1 "bytes" (percent%) "sessions" ("percent"%) "bytes" ("percent"%) 99.97 % OVLD <<<<<< look for high CPU usage
An Improper Input Validation vulnerability in the syslog stream TCP transport of Juniper Networks Junos OS on MX240, MX480 and MX960 devices with MX-SPC3 Security Services Card allows an unauthenticated, network-based attacker, to send specific spoofed packets to cause a CPU Denial of Service (DoS) to the MX-SPC3 SPUs. Continued receipt and processing of these specific packets will sustain the DoS condition. This issue affects Junos OS: * All versions before 22.2R3-S6, * from 22.4 before 22.4R3-S4, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R1-S2, 24.2R2 An indicator of compromise will indicate the SPC3 SPUs utilization has spiked. For example: user@device> show services service-sets summary Service sets CPU Interface configured Bytes used Session bytes used Policy bytes used utilization "interface" 1 "bytes" (percent%) "sessions" ("percent"%) "bytes" ("percent"%) 99.97 % OVLD <<<<<< look for high CPU usage
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2025-03-24 CVE Reserved
- 2025-04-09 CVE Published
- 2025-04-09 CVE Updated
- 2025-04-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://supportportal.juniper.net/JSA96459 | 2025-04-09 |
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" | < 22.2R3-S6 Search vendor "Juniper Networks" for product "Junos OS" and version " < 22.2R3-S6" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.4 < 22.4R3-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3-S4" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 23.2 < 23.2R2-S3 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2-S3" | en |
Affected
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| 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
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 24.2 < 24.2R1-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 24.2 < 24.2R1-S2" | en |
Affected
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| 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
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