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CVE-2021-43554

26
FAUCET Score

CVE-2021-43554 describes an out-of-bounds write vulnerability in FATEK WinProladder versions 3.30_24518 and earlier, which could enable arbitrary code execution through specially crafted project files. This vulnerability carries a high CVSS score of 7.8, indicating a local attack vector with low complexity, requiring user interaction, and potentially leading to high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.30_24518CPE matchmatch criteria
cpe:2.3:a:fatek:winproladder:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 76th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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-21-320-01
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-22-028
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-22-030
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-22-033
Third Party AdvisoryVDB Entry