CVE-2026-101948

HIGHCVSS 7.5/10EPSS 0.46%

Last modified

CVE-2026-101948 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Juniper NetworksJunos OS>= 25.2, < 25.2R2-S2; >= 25.4, < 25.4R1-S3; >= 26.2, < 26.2R1-S2
Juniper NetworksJunos OS Evolved>= 25.2, < 25.2R2-S2-EVO; >= 25.4, < 25.4R1-S3-EVO; >= 26.2, < 26.2R1-S2-EVO; 23.4X100; >= 25.2X100, < 25.2X100-D35-EVO; >= 25.4X300, < 25.4X300-D40-EVO

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-101948?
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.
How severe is CVE-2026-101948?
CVE-2026-101948 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.
How do I fix CVE-2026-101948?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST