CVE-2026-21916
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
29/100
Published: 2026-04-09
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Low Complexity
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
Passive
S:
X
AT:
None
VC:
High
VI:
High
VA:
High
Description
A UNIX Symbolic Link (Symlink) Following vulnerability in the CLI of Juniper Networks Junos OS allows a local, authenticated attacker with low privileges to escalate their privileges to root which will lead to a complete compromise of the system. When after a user has performed a specific 'file link ...' CLI operation, another user commits (unrelated configuration changes), the first user can login as root. This issue affects Junos OS: * all versions before 23.2R2-S7, * 23.4 versions before 23.4R2-S6, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R2. This issue does not affect versions 25.4R1 or later.
Weakness Classification (1)
Affected Software (39)
| Vendor | Product | Version |
|---|---|---|
| juniper | junos | < 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.2 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 23.4 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.2 |
| juniper | junos | 24.4 |
Showing 30 of 39 entries
References & Advisories (1)
Mitigation
Vendor Advisory