CVE-2026-26115
SQL Server privilege escalation via input validation flaw over network.
Is CVE-2026-26115 being exploited?
Not confirmed. CVE-2026-26115 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 1.1% probability of exploitation in the next 30 days.
How severe is CVE-2026-26115?
CVE-2026-26115 is rated High with a CVSS score of 8.8. 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-2026-26115?
Yes. A fix has been recorded for CVE-2026-26115. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-26115 affect?
CVE-2026-26115 affects Microsoft SQL Server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-26115?
Patch when available; tighten input validation; enforce least privilege
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote privilege escalation on SQL Server via input validation flaw; authenticated access required.
Patch when possible
- affected>= 13.0.0 and < 13.0.7075.5
- affected>= 13.0.0 and < 13.0.6480.4
- affected>= 14.0.0 and < 14.0.3520.4
- affected>= 14.0.0 and < 14.0.2100.4
- affected>= 15.0.0.0 and < 15.0.4460.4
- affected>= 15.0.0 and < 15.0.2160.4
- affected>= 16.0.0.0 and < 16.0.4240.4
- affected>= 16.0.0 and < 16.0.1170.5
- affected>= 17.0.0.0 and < 17.0.4020.2
- affected>= 17.0.1050.2 and < 17.0.1105.2
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.