Remote root code execution in Juniper Junos authd via RADIUS responses impacts core network infrastructure used broadly by enterprises and service providers.
CVE-2026-102014
Juniper Junos authd RADIUS buffer overflow enabling remote root code execution
Is CVE-2026-102014 being exploited?
Not confirmed. CVE-2026-102014 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.35% probability of exploitation in the next 30 days.
How severe is CVE-2026-102014?
CVE-2026-102014 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-102014?
Not known from our data. No patch reference has been recorded for CVE-2026-102014, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-102014 affect?
CVE-2026-102014 affects Juniper Networks Junos OS (authd process / RADIUS client). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-102014?
Isolate/trust RADIUS servers, restrict/validate RADIUS endpoints, apply Juniper patch when published
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An attacker controlling a RADIUS server can crash authd or execute arbitrary code as root via a crafted RADIUS response.
Immediate action required
- affected< 23.2R2-S7.7
- affected>= 23.4 and < 23.4R2-S8.13
- affected>= 24.2 and < 24.2R2-S5.5
- affected>= 24.4 and < 24.4R2-S5
- affected>= 25.2 and < 25.2R2-S2
- affected>= 25.4 and < 25.4R1-S3
- affected>= 26.2 and < 26.2R1-S2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.