CVE-2019-19931
CVE-2019-19931 is a high-severity vulnerability in Mz-automation Libiec61850 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Mz-automation Libiec61850
- Published:
- Last modified:
Description
In libIEC61850 1.4.0, MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c has a heap-based buffer overflow.
Frequently asked questions
- What is CVE-2019-19931?
- In libIEC61850 1.4.0, MmsValue_decodeMmsData in mms/iso_mms/server/mms_access_result.c has a heap-based buffer overflow.
- How severe is CVE-2019-19931?
- CVE-2019-19931 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-19931 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-19931?
- CVE-2019-19931 affects Mz-automation Libiec61850. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-19931?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2019-19931 published?
- CVE-2019-19931 was published on 2019-12-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mz-automation:libiec61850:1.4.0:*:*:*:*:*:*:*
More vulnerabilities in Mz-automation Libiec61850
- CVE-2022-2972 — Critical (CVSS 10.0): MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit…
- CVE-2022-2970 — Critical (CVSS 10.0): MZ Automation's libIEC61850 (versions 1.4 and prior; version 1.5 prior to commit…
- CVE-2024-45971 — Critical (CVSS 9.8): Multiple Buffer overflows in the MMS Client in MZ Automation LibIEC61850 before commit…
- CVE-2024-45970 — Critical (CVSS 9.8): Multiple Buffer overflows in the MMS Client in MZ Automation LibIEC61850 before commit…
- CVE-2018-19185 — Critical (CVSS 9.8): An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in…
- CVE-2018-18957 — Critical (CVSS 9.8): An issue has been found in libIEC61850 v1.3. It is a stack-based buffer overflow in prepareGooseBuffer in…
All CVEs affecting Mz-automation Libiec61850 →
Other CWE-787 (Out-of-bounds Write) vulnerabilities
- CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
- CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src modules). This vulnerability is…
- CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
- CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
- CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
- CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…