CVE-2026-102019
Junos OS and Junos OS Evolved: Malformed RIPv2 messages cause routing service disruption when RIP is enabled
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Junos OS and Junos OS Evolved: Malformed RIPv2 messages cause routing service disruption when RIP is enabled
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.
- Record
CVE-2026-102019- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1284
- Updated
- 2026-11-02
EUVDEUVD-2026-101344
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.
- Record
EUVD-2026-101344- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-xppx-22rc-wjv5
An Improper Validation of Specified Quantity in Input vulnerability in the rpd process of Juniper...
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.
- Record
GHSA-xppx-22rc-wjv5- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1284
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-102019- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1284
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-102019 is a high vulnerability (CVSS 7.1) in Juniper Networks Junos Os, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.