Security readout for executives and security teams
Plain-English summary
CVE-2019-1010300 is a buffer overflow in mz-automation libiec61850 versions 1.3.0, 1.3.1, and 1.3.2. The reported impact is a software crash after receiving a specific MMS protocol packet. The public record does not provide CVSS, KEV listing, or a named fixed version.
Executive priority
Prioritize assessment if libiec61850 is used in OT or automation environments where service crashes affect operations. Without confirmed active exploitation or severity scoring, urgency should be driven by whether MMS services are reachable and business-critical.
Technical view
The CVE names libiec61850's server_example_complex_array component as vulnerable to a buffer overflow triggered by an MMS packet. Evidence supports crash impact only. The record does not establish code execution, privilege impact, broad component impact, exploit availability, or a remediation version.
Likely exposure
Exposure is likely limited to systems using libiec61850 1.3.0 through 1.3.2 where the named example server component is built or deployed and reachable by MMS traffic. Production exposure is unclear from the sources.
Exploitation context
The CVE describes a network packet trigger over MMS but provides no KEV status and no cited evidence of active exploitation. Treat exploitation status as unknown, not confirmed active.
Researcher notes
The source evidence is sparse. It identifies affected versions, component, attack vector, and crash impact, but not root-cause detail, fixed commit, CVSS, CWE, or exploit status. Avoid extending impact beyond denial of service without additional vendor evidence.
Mitigation direction
- Inventory systems using libiec61850 1.3.0, 1.3.1, or 1.3.2.
- Check vendor issue and project guidance for fixed versions or recommended changes.
- Remove or disable server_example_complex_array if not operationally required.
- Restrict MMS access to trusted management or OT network paths only.
- Monitor affected services for unexpected crashes or restarts.
Validation and detection
- Confirm deployed libiec61850 versions across applications and firmware.
- Verify whether server_example_complex_array is compiled, packaged, or running.
- Review network exposure for MMS-reachable services using the library.
- Check crash logs for failures in affected libiec61850 services.
- Track the referenced GitHub issue for remediation details.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-1010300 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/mz-automation/libiec61850/issues/127CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.