CVE-2026-50032
Network-adjacent NULL deref in MMS handler allows server crash (Denial of Service).
Is CVE-2026-50032 being exploited?
Not confirmed. CVE-2026-50032 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 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-50032?
CVE-2026-50032 is rated High with a CVSS score of 8.7. 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-2026-50032?
Not known from our data. No patch reference has been recorded for CVE-2026-50032, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-50032 affect?
CVE-2026-50032 affects MMS servers, IEC 61850 devices, SCADA/ICS components implementing MMS, Industrial gateways. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50032?
Block/untrusted MMS traffic, restrict access, apply vendor fixes/updates when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Network-adjacent attacker can crash MMS servers/IEC 61850 devices via crafted WriteRequest (empty listOfData), causing denial of service to control systems.
Immediate action required
- affected>= 1.0.0 and <= 1.6.1
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.