Vulnerability in Juniper Junos
CVE-2022-22166
An Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause an rdp crash and thereby a Denial of Service (DoS). If a BGP update message is received over an established BGP session where a BGP SR-TE policy tunnel attribute is malformed and BGP update tracing flag is enabled, the rpd will core. This issue can happen with any BGP session as long as the previous conditions are met. This issue can not propagate as the crash occurs as soon as the malformed update is received. This issue affects Juniper Networks Junos OS: 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R2-S2, 21.1R3. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Juniper Junos — versions 20.4, 21.1
- Juniper Networks Junos OS — versions unspecified, 20.4, 21.1
Weakness classification (CWE)
References
- kb.juniper.net/JSA11274 (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-22166?
- CVE-2022-22166 is a medium-severity vulnerability in Juniper Junos, classified under Improper Validation of Specified Quantity in Input. CVSS score: 6.5/10. Published 2022-01-19.
- How severe is CVE-2022-22166?
- Medium severity. CVSS v3 base score is 6.5 out of 10.