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Description

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root. When a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device. This issue affects: Junos OS: * all versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S8, * 22.2 versions before 22.2R3-S6, * 22.3 versions before 22.3R3-S3, * 22.4 versions before 22.4R3-S6, * 23.2 versions before 23.2R2-S1, * 23.4 versions before 23.4R1-S2, 23.4R2; Junos OS Evolved: * all versions before 22.4R3-S6-EVO, * 23.2-EVO versions before 23.2R2-S1-EVO, * 23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.

PUBLISHED Reserved 2025-06-23 | Published 2025-07-11 | Updated 2026-02-26 | Assigner juniper




MEDIUM: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

HIGH: 8.4CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/RE:M

Problem types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unaffected

Any version before 21.2R3-S9
affected

21.4 (semver) before 21.4R3-S8
affected

22.2 (semver) before 22.2R3-S6
affected

22.3 (semver) before 22.3R3-S3
affected

22.4 (semver) before 22.4R3-S6
affected

23.2 (semver) before 23.2R2-S1
affected

23.4 (semver) before 23.4R1-S2, 23.4R2
affected

Default status
unaffected

Any version before 22.4R3-S6-EVO
affected

23.2-EVO (semver) before 23.2R2-S1-EVO
affected

23.4-EVO (semver) before 23.4R1-S2-EVO, 23.4R2-EVO
affected

Credits

National Security Agency finder

References

supportportal.juniper.net/JSA100095 vendor-advisory

cve.org (CVE-2025-52988)

nvd.nist.gov (CVE-2025-52988)

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