CVE-2026-101971: Junos OS and Junos OS Evolved: An attacker causes routing protocol daemon crash when OSPFv3 is enabled

Medium severity · published Oct 14, 2026

CVE-2026-101971

Junos OS and Junos OS Evolved: An attacker causes routing protocol daemon crash when OSPFv3 is enabled

6.5

CVSS

0.3%

EPSS

On KEV

Description

An Allocation of Resources Without Limits or Throttling vulnerability in rpd, the routing protocol daemon, of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to cause a denial of service and heap memory corruption via OSPFv3 messages on an enabled broadcast interface.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

Adjacent

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 19% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Junos OS · Juniper

before 23.2R2-S7.7; 23.4 before 23.4R2-S8.13; 24.2 before 24.2R2-S5.5; 24.4 before 24.4R2-S5; 25.2 before 25.2R2-S2; 25.4 before 25.4R1-S3; +1 more · source: vendor

Junos OS Evolved · Juniper Networks

before 23.2R2-S7.7-EVO; 23.4 before 23.4R2-S8.11-EVO; 24.2 before 24.2R2-S5.6-EVO; 24.4 before 24.4R2-S5-EVO; 25.2 before 25.2R2-S2-EVO; 25.4 before 25.4R1-S3-EVO; +4 more · source: vendor

Affected product

Junos OS

Juniper

All Junos OS CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-101971

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-101971

vendor-advisory

https://supportportal.juniper.net/JSA112187