CVE-2021-32956
CVE-2021-32956 is a medium-severity vulnerability in Advantech Webaccess/scada with a CVSS 3.x base score of 6.1. 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-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Advantech Webaccess/scada
- Published:
- Last modified:
Description
Advantech WebAccess/SCADA Versions 9.0.1 and prior is vulnerable to redirection, which may allow an attacker to send a maliciously crafted URL that could result in redirecting a user to a malicious webpage.
Frequently asked questions
- What is CVE-2021-32956?
- Advantech WebAccess/SCADA Versions 9.0.1 and prior is vulnerable to redirection, which may allow an attacker to send a maliciously crafted URL that could result in redirecting a user to a malicious webpage.
- How severe is CVE-2021-32956?
- CVE-2021-32956 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-32956 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-32956?
- CVE-2021-32956 affects Advantech Webaccess/scada. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-32956?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-32956 published?
- CVE-2021-32956 was published on 2021-06-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:advantech:webaccess\/scada:*:*:*:*:*:*:*:*
More vulnerabilities in Advantech Webaccess/scada
- CVE-2023-1437 — Critical (CVSS 9.8): All versions prior to 9.1.4 of Advantech WebAccess/SCADA are vulnerable to use of untrusted pointers. The RPC arguments…
- CVE-2021-32943 — Critical (CVSS 9.8): The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute…
- CVE-2019-6523 — Critical (CVSS 9.8): WebAccess/SCADA, Version 8.3. The software does not properly sanitize its inputs for SQL commands.
- CVE-2019-6519 — Critical (CVSS 9.8): WebAccess/SCADA, Version 8.3. An improper authentication vulnerability exists that could allow a possible…
- CVE-2025-14849 — High (CVSS 8.8): Advantech WebAccess/SCADA is vulnerable to unrestricted file upload, which may allow an attacker to remotely execute…
- CVE-2021-22669 — High (CVSS 8.8): Incorrect permissions are set to default on the ‘Project Management’ page of WebAccess/SCADA portal of…
All CVEs affecting Advantech Webaccess/scada →
Other CWE-601 (Open Redirect) vulnerabilities
- CVE-2018-3774 — Critical (CVSS 10.0): Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open…
- CVE-2019-25282 — Critical (CVSS 9.8): V-SOL GPON/EPON OLT Platform v2.03 contains an open redirect vulnerability in the script that allows attackers to…
- CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
- CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
- CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
- CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.