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CVE-2025-66590

30
FAUCET Score

CVE-2025-66590 is a critical Out-of-bounds Write vulnerability affecting AzeoTech DAQFactory release 20.7 (Build 2555). An unauthenticated attacker can remotely exploit this flaw to write data beyond allocated memory, potentially leading to arbitrary code execution or a system crash. With a CVSS score of 9.8, this vulnerability presents a severe risk due to its network-based attack vector and low attack complexity. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 21.1CPE matchmatch criteria
cpe:2.3:a:azeotech:daqfactory:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.4HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 4th percentile among its peer group of 36,897 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

github.com / cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-345-03.json
cisa.gov / news-events/ics-advisories/icsa-25-345-03
Third Party AdvisoryUS Government Resource