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Description

An Improper Neutralization of Delimiters vulnerability in the UI of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with high privileges to modify the system configuration. A user with limited configuration and commit permissions, using a specifically crafted annotate configuration command, can change any part of the device configuration. This issue affects: Junos OS: * all versions before 22.2R3-S7, * 22.4 versions before 22.4R3-S7, * 23.2 versions before 23.2R2-S4, * 23.4 versions before 23.4R2-S4, * 24.2 versions before 24.2R2-S1, * 24.4 versions before 24.4R1-S2, 24.4R2; Junos OS Evolved: * all versions before 22.4R3-S7-EVO, * 23.2-EVO versions before 23.2R2-S4-EVO, * 23.4-EVO versions before 23.4R2-S5-EVO, * 24.2-EVO versions before 24.2R2-S1-EVO * 24.4-EVO versions before 24.4R2-EVO.

PUBLISHED Reserved 2025-06-23 | Published 2025-07-11 | Updated 2025-09-24 | Assigner juniper




MEDIUM: 5.1CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

MEDIUM: 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/R:U/RE:M

Problem types

CWE-140 Improper Neutralization of Delimiters

Product status

Default status
unaffected

Any version before 22.2R3-S7
affected

22.4 (semver) before 22.4R3-S7
affected

23.2 (semver) before 23.2R2-S4
affected

23.4 (semver) before 23.4R2-S4
affected

24.2 (semver) before 24.2R2-S1
affected

24.4 (semver) before 24.4R1-S2, 24.4R2
affected

Default status
unaffected

Any version before 22.4R3-S7-EVO
affected

23.2-EVO (semver) before 23.2R2-S4-EVO
affected

23.4-EVO (semver) before 23.4R2-S5-EVO
affected

24.2-EVO (semver) before 24.2R2-S1-EVO
affected

24.4-EVO (semver) before 24.4R2-EVO
affected

Credits

Vincent Szurma (vszurma) – Independent IT and Security Consultant finder

References

supportportal.juniper.net/JSA100096 vendor-advisory

cve.org (CVE-2025-52989)

nvd.nist.gov (CVE-2025-52989)

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