Critical RCE in a widely-deployed ManageEngine network management product that can enable full server takeover and lateral movement; high-impact for many organizations.
CVE-2026-19599
Remote code execution in ManageEngine OpManager MSP (<=12.8.709) via Notification Profile.
Is CVE-2026-19599 being exploited?
Not confirmed. CVE-2026-19599 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.
How severe is CVE-2026-19599?
CVE-2026-19599 is rated Critical with a CVSS score of 9.9. 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-2026-19599?
Yes. A fix has been recorded for CVE-2026-19599. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-19599 affect?
CVE-2026-19599 affects ManageEngine OpManager MSP <= 12.8.709. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19599?
Apply vendor patch/update immediately; isolate and restrict access to affected instances.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution allowing arbitrary command execution and full server compromise via the Notification Profile module.
Immediate action required
- affected< 12.8.711
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.