Reachable Assertion Vulnerability in Junos OS by Juniper Networks
CVE-2026-101964

7.1HIGH

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-101964?

A Reachable Assertion vulnerability exists in the routing protocol daemon (rpd) of Junos OS and Junos OS Evolved. This flaw enables an adjacent attacker to exploit a crafted LDP packet received over an established LDP session, potentially leading to an rpd crash. Organizations using affected versions should implement mitigations to protect against this security risk.

Affected Version(s)

Junos OS 23.4 < 23.4R2-S8.13

Junos OS 24.2 < 24.2R2-S5.5

Junos OS 24.4 < 24.4R2-S5

References

https://supportportal.juniper.net/JSA112187
vendor-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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