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Fencer Vulns
medium 5.0

CVE-2024-39544 json

Junos OS Evolved: Low privileged local user able to view NETCONF traceoptions files

published 2024-10-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-38070

cvss
5.0
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 9%
public exploits
0
none known

Summary

An Incorrect Default Permissions vulnerability in the command line interface (CLI) of Juniper Networks Junos OS Evolved allows a low privileged local attacker to view NETCONF traceoptions files, representing an exposure of sensitive information.

On all Junos OS Evolved platforms, when NETCONF traceoptions are configured, NETCONF traceoptions files get created with an incorrect group permission, which allows

a low-privileged user can access sensitive information compromising the confidentiality of the system.

Junos OS Evolved:

* All versions before 20.4R3-S9-EVO,  * 21.2-EVO before 21.2R3-S7-EVO,  * 21.4-EVO before 21.4R3-S5-EVO,  * 22.1-EVO before 22.1R3-S5-EVO,  * 22.2-EVO before 22.2R3-S3-EVO,  * 22.3-EVO before 22.3R3-EVO, 22.3R3-S2-EVO,  * 22.4-EVO before 22.4R3-EVO,  * 23.2-EVO before 23.2R1-S2-EVO, 23.2R2-EVO.

Patch / fix

  • Juniper Networks Junos OS Evolved 20.4R3-S9-EVO, 21.2R3-S7-EVO, 21.4R3-S5-EVO, 22.1R3-S5-EVO, 22.2R3-S3-EVO, 22.3R3-S2-EVO, 22.4R3-EVO, 23.2R1-S2-EVO, 23.2R2-EVO

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
CNA 4.0 5.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 5.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/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

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

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.