CVE-2019-3975
CVE-2019-3975 is a critical-severity vulnerability in Advantech Webaccess 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: 5% (90th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Advantech Webaccess
- Published:
- Last modified:
Description
Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.1 allows a remote, unauthenticated attacker to execute arbitrary code via a crafted IOCTL 70603 RPC message.
Frequently asked questions
- What is CVE-2019-3975?
- Stack-based buffer overflow in Advantech WebAccess/SCADA 8.4.1 allows a remote, unauthenticated attacker to execute arbitrary code via a crafted IOCTL 70603 RPC message.
- How severe is CVE-2019-3975?
- CVE-2019-3975 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-2019-3975 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-3975?
- CVE-2019-3975 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-3975?
- 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-2019-3975 published?
- CVE-2019-3975 was published on 2019-09-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:advantech:webaccess:8.4.1:*:*:*:*:*:*:*
More vulnerabilities in Advantech Webaccess
- CVE-2014-9208 — Critical (CVSS 10.0): Multiple stack-based buffer overflows in unspecified DLL files in Advantech WebAccess before 8.0.1 allow remote…
- CVE-2021-38389 — Critical (CVSS 9.8): Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow an…
- CVE-2021-33023 — Critical (CVSS 9.8): Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker…
- CVE-2021-38408 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper…
- CVE-2020-12019 — Critical (CVSS 9.8): WebAccess Node Version 8.4.4 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to…
- CVE-2020-12022 — Critical (CVSS 9.8): Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that…
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