CVE-2025-52989: juniper networks junos os Improper Neutralization of Delimiters
Vulnerability summary
CVE-2025-52989 is a medium (CVSS 6.8) Improper Neutralization of Delimiters vulnerability in juniper networks junos os. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.6% of scored vulnerabilities.
Timeline
- 11-07-2025PublishedVulnerability first disclosed.
- 24-09-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 2 sources · 2 versions- NVDNIST6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/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:U/V:X/RE:M/U:X
- NVDNIST5.1MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
+0.01 pp
From 0.12% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Juniper2 products
- junos< 22.2 | 22.2 | 22.2:r1 | 22.2:r1-s1 | 22.2:r1-s2 | 22.2:r2 | 22.2:r2-s1 | 22.2:r2-s2 | 22.2:r3 | 22.2:r3-s1 | 22.2:r3-s2 | 22.2:r3-s3 | 22.2:r3-s4 | 22.2:r3-s5 | 22.2:r3-s6 | 22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 22.4:r3-s5 | 22.4:r3-s6 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.2:r2 | 23.2:r2-s1 | 23.2:r2-s2 | 23.2:r2-s3 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2 | 23.4:r2 | 23.4:r2-s1 | 23.4:r2-s2 | 23.4:r2-s3 | 24.2 | 24.2:r1 | 24.2:r1-s1 | 24.2:r1-s2 | 24.2:r2 | 24.4 | 24.4:r1 | 24.4:r2
- junos_os_evolved< 22.4 | 22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 22.4:r3-s5 | 22.4:r3-s6 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.2:r2 | 23.2:r2-s1 | 23.2:r2-s2 | 23.2:r2-s3 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2 | 23.4:r2 | 23.4:r2-s1 | 23.4:r2-s2 | 23.4:r2-s3 | 23.4:r2-s4 | 24.2 | 24.2:r1 | 24.2:r1-s2 | 24.2:r2 | 24.4 | 24.4:r1 | 24.4:r1-s2 | 24.4:r1-s3
Juniper networks2 products
- junos os< 22.2R3-S7 | ≥ 22.4, < 22.4R3-S7 | ≥ 23.2, < 23.2R2-S4 | ≥ 23.4, < 23.4R2-S4 | ≥ 24.2, < 24.2R2-S1 | ≥ 24.4, < 24.4R1-S2, 24.4R2
- junos os evolved< 22.4R3-S7-EVO | ≥ 23.2-EVO, < 23.2R2-S4-EVO | ≥ 23.4-EVO, < 23.4R2-S5-EVO | ≥ 24.2-EVO, < 24.2R2-S1-EVO | ≥ 24.4-EVO, < 24.4R2-EVO
2 vendors · 4 products
References
1 links- supportportal.juniper.net/JSA100096Vendor Advisory