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CVE-2016-4529

27
FAUCET Score

CVE-2016-4529 describes an unspecified ActiveX control vulnerability in Schneider Electric SoMachine HVAC Programming Software for M171/M172 Controllers prior to version 2.1.0. This flaw, related to the INTERFACESAFE_FOR_UNTRUSTED_CALLER flag, allows remote attackers to execute arbitrary code. With a CVSS score of 7.3 (HIGH), it presents a low-complexity network attack vector that could lead to partial loss of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.2CPE matchmatch criteria
cpe:2.3:o:schneider-electric:somachine_hvac_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.99%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0499 is in the 85th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

download.schneider-electric.com / files
PatchVendor Advisory
ics-cert.us-cert.gov / advisories/ICSA-16-196-03
MitigationThird Party AdvisoryUS Government Resource
securityfocus.com / bid/91778
Third Party AdvisoryVDB Entry
zerodayinitiative.com / advisories/ZDI-16-440
Third Party AdvisoryVDB Entry