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CVE-2025-21590

medium · 6.7Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Added 2025-03-13Remediation due 2025-04-03

An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device. A local attacker with access to the shell is able to inject arbitrary code which can compromise an affected device. This issue is not exploitable from the Junos CLI. This issue affects Junos OS:  * All versions before 21.2R3-S9, * 21.4 versions before 21.4R3-S10,  * 22.2 versions before 22.2R3-S6,  * 22.4 versions before 22.4R3-S6,  * 23.2 versions before 23.2R2-S3,  * 23.4 versions before 23.4R2-S4, * 24.2 versions before 24.2R1-S2, 24.2R2.

6.7
CVSS
1.7%
EPSS (exploit prob.)
76th
EPSS percentile
2025-03-12
Published

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/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

Weaknesses

CWE-653

Affected products

VendorProductAffected versions
juniperjunos<= 21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.2
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos21.4
juniperjunos22.2
juniperjunos22.2
juniperjunos22.2
juniperjunos22.2
juniperjunos22.2
juniperjunos22.2

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-21590