CVE-2018-18834
CVE-2018-18834 is a critical-severity vulnerability in Mz-automation Libiec61850 with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (80th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Mz-automation Libiec61850
- Published:
- Last modified:
Description
An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.
Frequently asked questions
- What is CVE-2018-18834?
- An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c.
- How severe is CVE-2018-18834?
- CVE-2018-18834 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-18834 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-18834?
- CVE-2018-18834 affects Mz-automation Libiec61850. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-18834?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-18834 published?
- CVE-2018-18834 was published on 2018-10-30 and last updated on 2026-06-17.
References
- https://github.com/fouzhe/security/tree/master/libiec61850
- https://github.com/mz-automation/libiec61850/issues/81
Affected products (1)
- cpe:2.3:a:mz-automation:libiec61850:1.3:*:*:*:*:*:*:*
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 →
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