CVE-2018-7803
CVE-2018-7803 is a medium-severity vulnerability in Schneider-electric Triconex Tristation Emulator with a CVSS 3.x base score of 5.9. 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-754.
Key facts
- Severity: Medium (CVSS 3.x base score 5.9)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-754
- Affected product: Schneider-electric Triconex Tristation Emulator
- Published:
- Last modified:
Description
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TriStation Emulator V1.2.0, which could cause the emulator to crash when sending a specially crafted packet. The emulator is used infrequently for application logic testing. It is susceptible to an attack only while running in off-line mode. This vulnerability does not exist in Triconex hardware products and therefore has no effect on the operating safety functions in a plant.
Frequently asked questions
- What is CVE-2018-7803?
- A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TriStation Emulator V1.2.0, which could cause the emulator to crash when sending a specially crafted packet. The emulator is used infrequently for application logic testing. It is susceptible to an attack only while running in off-line mode. This vulnerability does not exist in Triconex hardware products and therefore has no effect on the operating safety functions in a plant.
- How severe is CVE-2018-7803?
- CVE-2018-7803 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-7803 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-7803?
- CVE-2018-7803 affects Schneider-electric Triconex Tristation Emulator. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-7803?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-7803 published?
- CVE-2018-7803 was published on 2019-05-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:schneider-electric:triconex_tristation_emulator:1.2.0:*:*:*:*:*:*:*
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