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Fencer Vulns
medium 6.6

CVE-2024-39512 json

Junos OS Evolved: User is not logged out when the console cable is disconnected

published 2024-07-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-38038

cvss
6.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

An Improper Physical Access Control vulnerability in the console port control of Juniper Networks Junos OS Evolved allows an attacker with physical access to the device to get access to a user account.

When the console cable is disconnected, the logged in user is not logged out. This allows a malicious attacker with physical access to the console to resume a previous session and possibly gain administrative privileges.

This issue affects Junos OS Evolved: * from 23.2R2-EVO before 23.2R2-S1-EVO,  * from 23.4R1-EVO before 23.4R2-EVO.

Patch / fix

  • Juniper Networks Junos OS Evolved 23.2R2-S1-EVO, 23.4R2-EVO
  • juniper junos_evolved 23.2R2-S1-EVO, 23.4R2-EVO

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 4.0 7.0 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 7.0 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Juniper Networks Junos OS Evolved
  • juniper junos_evolved

Classification

Weakness
  • CWE-1263 Improper Physical Access Control

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.