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CVE-2021-22658

36
FAUCET Score

CVE-2021-22658 is a critical SQL injection vulnerability affecting Advantech iView versions prior to v5.7.03.6112. This flaw allows an unauthenticated attacker to remotely escalate privileges to 'Administrator' due to its network-based attack vector and low complexity. With a CVSS score of 9.8, the potential impact includes complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available, nor is it listed on the CISA KEV catalog, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.7.03.6112CPE matchmatch criteria
cpe:2.3:a:advantech:iview:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
12.72%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1272 is in the 92nd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

us-cert.cisa.gov / ics/advisories/icsa-21-040-02
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-21-191
Third Party AdvisoryVDB Entry