CVE-2026-22306
Abandoned auto-update domain allows malicious updates and RCE in OZOLS (pre-1.1.1233).
Is CVE-2026-22306 being exploited?
Not confirmed. CVE-2026-22306 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 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-22306?
CVE-2026-22306 is rated Critical with a CVSS score of 10.0. 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-2026-22306?
Yes. A fix has been recorded for CVE-2026-22306. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-22306 affect?
CVE-2026-22306 affects OZOLS (versions before 1.1.1233), OzolsSQL client, SQL Server Agent job <db>_update (serv_update.vbs). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22306?
Upgrade to OZOLS 1.1.1233+ immediately; disable auto-update and block legacy update domain
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via malicious auto-update (serv_update.vbs / SQL Agent ActiveScripting) and cleartext data exposure; attackers can run arbitrary code and exfiltrate data.
Immediate action required
- affected< 1.1.1233
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.