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CVE-2026-101990

Last refreshed2026-10-30

Status: UPDATED  |  Advisory ID: CVE-2026-101990

Key Details

CVECVE-2026-101990
CVSS Score / Version
9.8 (Critical) / CVSS v3.1
Updated2026-10-30
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
juniper junos, Juniper Networks Junos OS, juniper junos_os_evolved, and Juniper Networks Junos OS Evolved
Classified as
CWE-121 (Stack-based Buffer Overflow)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
juniperjunos
Juniper NetworksJunos OS
juniperjunos_os_evolved
Juniper NetworksJunos OS Evolved
SubsystemsGeneral OT
SectorsMultiple

What to Know

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote configured BGP peer to cause an rpd crash, or on Junos OS remote code-execution, via sending a flow-spec update which is selected for re-advertisement.

What to Do

Monitor juniper's and Juniper Networks's web pages for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-101990
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-101990
Vendor advisoryhttps://supportportal.juniper.net/JSA112187
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