File Parsing Memory Corruption in CNCSoft-G2

published 2025-06-04 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16854

cvss: 7.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits: 0; none known

Delta Electronics CNCSoft-G2 lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.

Patch / fix

fixed in 1

Delta Electronics CNCSoft-G2 2.1.0.27

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-240-04 updated 2025-08-28 cvss 7.8

Delta Electronics CNCSoft-G2

Delta Electronics CNCSoft-G2 <=2.1.0.20
affected: mitigation “Delta Electronics recommends users update to v2.1.0.27 or later.” downloadcenter.deltaww.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 17 mo ago (2025-06-04)

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.3	CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA	4.0	7.3	CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
NVD	3.1	7.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

Delta Electronics CNCSoft-G2

Classification

Weakness

CWE-787 Out-of-bounds Write

References

filecenter.deltaww.com /news/download/doc/Delta-PCSA-2025-00007_CNCSoft-G2%20-%20File%20Parsing%20Memory%20Corruption.pdf
vendor-advisory

Sources

CVE List CVE-2025-47728
NVD CVE-2025-47728

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary