CVE-2026-2737
Authenticated XSS in Flowmon could trigger actions in an admin session
Is CVE-2026-2737 being exploited?
Not confirmed. CVE-2026-2737 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 0.20% probability of exploitation in the next 30 days.
How severe is CVE-2026-2737?
CVE-2026-2737 is rated High with a CVSS score of 8.5. 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-2026-2737?
Yes. A fix has been recorded for CVE-2026-2737. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-2737 affect?
CVE-2026-2737 affects Progress Flowmon before 12.5.8, Progress Flowmon before 13.0.6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-2737?
Update to 12.5.8 or 13.0.6
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can execute actions in an authenticated admin session via crafted input; may alter settings or access data
Patch when possible
- affectedFlowmon 12 versions prior to 12.5.8
- affectedFlowmon 13 versions prior to 13.0.6
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.