Summary
generated automatically from NVD dataJunos OS and Junos OS Evolved contain a stack-based buffer overflow (CWE-121) in the BGP routing daemon. A configured BGP flowspec peer can trigger it through flowspec route re-advertisement when BGP update-threading is enabled. Successful exploitation could compromise the routing engine or cause a denial of service in the routing daemon. The flaw is rated CRITICAL with a CVSS v3.1 score of 9.8.
NVD description
A Stack-based Buffer Overflow vulnerability in the BGP routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP flowspec peer to cause routing-engine compromise or a routing-daemon denial of service via flowspec route re-advertisement when BGP update-threading is enabled.
EPSS · FIRST.org
0.45%probability of exploitation in the next 30 days
Higher than 37% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 14 oct. 2026
- Updated
- 16 oct. 2026
- Status
- Awaiting Analysis
- Source
- sirt@juniper.net
Weaknesses (CWE)
References (1)
Similar CVEs
Other vulnerabilities of type CWE-121
Monitor your products
Get automatic alerts for every new CVE affecting your equipment.