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CVE-2026-33789 Critical · 9.8 EPSS 0.7%

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and…

Juniper Networks · Junos OS

Summary

A stack-based buffer overflow in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved lets a flaw in how BGP route updates are processed go unchecked. An unauthenticated BGP peer can send crafted route updates when the BGP Monitoring Protocol (BMP) is enabled, causing a denial of service and potentially root-level command execution, with no user interaction required.

Official description · NVD

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated BGP peer to cause a denial of service and potential root-level command execution via crafted BGP route updates when the BGP Monitoring Protocol (BMP) is enabled.

Breakdown
19.6 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Disclosed on 14 Oct 2026. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 8 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

1 link, grouped by NVD tag

Other 1

supportportal.juniper.net/JSA112187
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