Vulnerability in Juniper Junos OS Evolved
CVE-2024-30390
An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited Denial of Service (DoS) to the management plane. When an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn't consider existing connections anymore for subsequent connection attempts so that the connection limit can be exceeded. This issue affects Junos OS Evolved: * All versions before 21.4R3-S4-EVO, * 22.1-EVO versions before 22.1R3-S3-EVO, * 22.2-EVO versions before 22.2R3-S2-EVO, * 22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Juniper Junos OS Evolved — versions 21.4, 22.1, 22.2
- Juniper Networks Junos OS Evolved — versions 0, 22.1-EVO, 22.2-EVO
Weakness classification (CWE)
Public proof-of-concept exploits
References
- supportportal.juniper.net/JSA79183 (vendor-advisory, Vendor Advisory)
- www.first.org/cvss/calculator/4.0 (technical-description, Issue Tracking)
Frequently asked questions
- What is CVE-2024-30390?
- CVE-2024-30390 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 5.3/10. Published 2024-04-12.
- How severe is CVE-2024-30390?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-30390 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.