Vulnerability in Juniper Junos OS Evolved
CVE-2024-39553
An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to send arbitrary data to the device, which leads msvcsd process to crash with limited availability impacting Denial of Service (DoS) and allows unauthorized network access to the device, potentially impacting system integrity. This issue only happens when inline jflow is configured. This does not impact any forwarding traffic. The impacted services MSVCS-DB app crashes momentarily and recovers by itself. This issue affects Juniper Networks Junos OS Evolved: * 21.4 versions earlier than 21.4R3-S7-EVO; * 22.2 versions earlier than 22.2R3-S3-EVO; * 22.3 versions earlier than 22.3R3-S2-EVO; * 22.4 versions earlier than 22.4R3-EVO; * 23.2 versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.
EPSS: 0.004 (32.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Juniper Junos_os_evolved — versions 21.4, 22.2, 22.3
- Juniper Networks Junos Os Evolved — versions 21.4-EVO, 22.2-EVO, 22.3-EVO
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sirt@juniper.net (Exploit, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-39553?
- CVE-2024-39553 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Exposure of Resource to Wrong Sphere. CVSS score: 6.5/10. Published 2024-07-11.
- How severe is CVE-2024-39553?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-39553 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.