CVE-2026-25655
SINEC NMS (<4.0 SP2): low-priv config edit can load DLLs, enabling RCE.
Is CVE-2026-25655 being exploited?
Not confirmed. CVE-2026-25655 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 0.25% probability of exploitation in the next 30 days.
How severe is CVE-2026-25655?
CVE-2026-25655 is rated Low with a CVSS score of 3.1. 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-2026-25655?
Yes. A fix has been recorded for CVE-2026-25655. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-25655 affect?
CVE-2026-25655 affects SINEC NMS < V4.0 SP2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-25655?
Upgrade to SINEC NMS 4.0 SP2 or later
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Low-privilege config modification can load DLLs, enabling admin-level arbitrary code execution.
Patch when possible
- affected< V4.0 SP2
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.