Vulnerability in Juniper Junos OS Evolved
CVE-2022-22195
An Improper Update of Reference Count vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to trigger a counter overflow, eventually causing a Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S1-EVO; 21.1 versions prior to 21.1R3-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.
EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Junos_os_evolved — versions 20.4, 21.1, 21.2
- Juniper Networks Junos Os — versions any
- Juniper Networks Junos Os Evolved — versions unspecified, 21.1, 21.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-22195?
- CVE-2022-22195 is a high-severity vulnerability in Juniper Junos OS Evolved, classified under CWE-911. CVSS score: 7.5/10. Published 2022-04-14.
- How severe is CVE-2022-22195?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-22195 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.