CVE-2026-21916 — A UNIX Symbolic Link (Symlink) Following vulnerability in the CLI of Juniper Ne…
Severity: High · Kind: Vulnerability
We've ingested this item but haven't summarised it yet. Read the upstream advisory using the link below in the meantime — the AI summary will appear here once the next run completes.
From the source
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.
Vulnerability facts
- CVE
- CVE-2026-21916
- CVSS
- 7.3
Was this useful?
Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.