Session Smart Router: A malicious DHCP server causes information disclosure and a service crash during DHCP option parsing (Juniper Networks Session Smart Router)

CVE-2026-103411
HIGH 7.1

At a glance

Source
CVE.org
EPSS
EPSS 0.17 % · percentile 7 ()
State
PUBLISHED
Published
Updated
Assigner
juniper

Description

An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.

Weaknesses (CWE)

  • CWE-191 — Integer Underflow (Wrap or Wraparound)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hjuniper

European references

CERT-FR advisories

Affected products

ProductVersions
Juniper Networks · Session Smart Routeraffected 0 < 7.0.5 ; affected 7.1.0 < 7.1.7 ; affected 7.2.0 < 7.2.3

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0