CVE-2026-16520
SQL injection and auth bypass in Genians Genian NAC/ ZTNA enabling unauthorized access.
Is CVE-2026-16520 being exploited?
Not confirmed. CVE-2026-16520 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 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-16520?
CVE-2026-16520 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-2026-16520?
Yes. A fix has been recorded for CVE-2026-16520. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-16520 affect?
CVE-2026-16520 affects Genians Genian NAC v4.0 (before 4.0.175), Genians Genian NAC v5.0 (before fixed revisions: 5.0.65/5.0.75/5.0.87/5.0.88 variants), Genians Genian ZTNA v6.0 (before fixed revisions: 6.0.26/6.0.35/6.0.47/6.0.48 variants). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-16520?
Apply vendor fixes immediately, restrict admin access, rotate credentials, audit logs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SQLi + authentication bypass allowing arbitrary DB queries, data exfiltration/modification and unauthorized administrative access.
Immediate action required
- affected>= 4.0.0 and < 4.0.175(Revision 150340)
- affected>= 5.0.0 and < 5.0.65 LTS(Revision 150331)
- affected>= 5.0.0 and < 5.0.75 LTS(Revision 150330)
- affected>= 5.0.0 and < 5.0.87 Release Stable(Revision 150329)
- affected>= 5.0.0 and < 5.0.88(Revision 150328)
- affected>= 6.0.0 and < 6.0.26 LTS(Revision 150337)
- affected>= 6.0.0 and < 6.0.35 LTS(Revision 150336)
- affected>= 6.0.0 and < 6.0.47 Release Stable(Revision 150334)
- affected>= 6.0.0 and < 6.0.48(Revision 150333)
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.