What is CVE-2021-22658?

CVE-2021-22658 is a critical-severity vulnerability in Advantech Iview, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-11.

How severe is CVE-2021-22658?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Advantech Iview

CVE-2021-22658

Advantech iView versions prior to v5.7.03.6112 are vulnerable to a SQL injection, which may allow an attacker to escalate privileges to 'Administrator'.

Vulnerability class: SQL Injection

Published 2021-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.127 (96.1th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.127 · newest: 0.127 · change: -0.000

Affected products

Advantech Iview
Advantech Iview — versions iView versions prior to v5.7.03.6112

Weakness classification (CWE)

CWE-89 — SQL Injection

References

us-cert.cisa.gov/ics/advisories/icsa-21-040-02 (US Government Resource, Third Party Advisory)
www.zerodayinitiative.com/advisories/ZDI-21-191/ (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-22658?: CVE-2021-22658 is a critical-severity vulnerability in Advantech Iview, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-11.
How severe is CVE-2021-22658?: Critical severity. CVSS v3 base score is 9.8 out of 10.