Vulnerability · Published Oct 14, 2026 · Assigned by juniper
CVE-2026-102019Junos OS and Junos OS Evolved: Malformed RIPv2 messages cause routing service disruption when RIP is enabled
Medium 6.5
In plain English
A medium-severity security flaw in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 80.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An Improper Validation of Specified Quantity in Input vulnerability in the rpd process of Juniper Networks Junos OS and Junos Evolved allows an unauthenticated adjacent attacker to cause a denial-of-service condition via a malformed RIPv2 message.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | 0 – before 23.2R2-S7.723.4 – before 23.4R2-S8.1324.2 – before 24.2R2-S5.524.4 – before 24.4R2-S525.2 – before 25.2R2-S225.4 – before 25.4R1-S326.2 – before 26.2R1-S2 |
| Juniper Networks | Junos OS Evolved | 0 – before 23.2R2-S7.7-EVO23.4 – before 23.4R2-S8.11-EVO24.2 – before 24.2R2-S5.6-EVO24.4 – before 24.4R2-S5-EVO25.2 – before 25.2R2-S2-EVO25.4 – before 25.4R1-S3-EVO26.2 – before 26.2R1-S2-EVO23.4X100 |
Weakness: CWE-1284 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://supportportal.juniper.net/JSA112187 vendor-advisory