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CVE-2023-43492

26
FAUCET Score

CVE-2023-43492 is a critical stack-based buffer overflow vulnerability found in the cgi-bin/codesys.cgi component of Weintek cMT3000 HMI Web CGI devices. This flaw allows an unauthenticated, remote attacker to hijack control flow, effectively bypassing login authentication. With a CVSS score of 9.8 (Critical), the vulnerability poses a severe risk, enabling complete compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the high severity warrants immediate attention for affected Weintek products.

Impacted Technologies

VendorProductVersion(s)CPE
< 20210212CPE matchmatch criteria
cpe:2.3:o:weintek:cmt-fhd_firmware:*:*:*:*:*:*:*:*
< 20210206CPE matchmatch criteria
cpe:2.3:o:weintek:cmt-hdm_firmware:*:*:*:*:*:*:*:*
< 20210220CPE matchmatch criteria
cpe:2.3:o:weintek:cmt3071_firmware:*:*:*:*:*:*:*:*
< 20210220CPE matchmatch criteria
cpe:2.3:o:weintek:cmt3072_firmware:*:*:*:*:*:*:*:*
< 20210220CPE matchmatch criteria
cpe:2.3:o:weintek:cmt3090_firmware:*:*:*:*:*:*:*:*

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
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 40th 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

dl.weintek.com / public/Document/TEC/TEC23005E_cMT_Web_Security_Update.pdf
ExploitVendor Advisory
cisa.gov / news-events/ics-advisories/icsa-23-285-12
Third Party AdvisoryUS Government Resource