What’s Vulnerable › Vulnerabilities

CVE-2021-22656

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-11 · updated 2026-06-17
• Weakness: CWE-22

Description

Advantech iView versions prior to v5.7.03.6112 are vulnerable to directory traversal, which may allow an attacker to read sensitive files.

Affected products

• Advantech iView: before 5.7.03.6112 — fixed in 5.7.03.6112

How to fix

Upgrade to a fixed version: Advantech iView 5.7.03.6112. Check the vendor advisory for mitigations.

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-040-02
• https://www.zerodayinitiative.com/advisories/ZDI-21-189/
• https://us-cert.cisa.gov/ics/advisories/icsa-21-040-02
• https://www.zerodayinitiative.com/advisories/ZDI-21-189/

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