Delta Electronics CNCSoft Out-of-bounds Read

published 2022-03-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31577

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

Delta Electronics CNCSoft (Version 1.01.30) and prior) is vulnerable to an out-of-bounds read while processing a specific project file, which may allow an attacker to disclose information.

Vendor advisories

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

cisa ICSA-21-350-02 updated 2021-12-16 cvss 6.1

Delta Electronics CNCSoft

Delta Electronics CNCSoft <= 1.01.30
affected: mitigation “Delta Electronics recommends users upgrade to the latest available patch.” 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: partial
Assessed: 18 mo ago (2025-04-16)

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

Delta Electronics CNCSoft

Classification

Weakness

CWE-125 Out-of-bounds Read

References

cisa.gov /uscert/ics/advisories/icsa-21-350-02
third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-44768
NVD CVE-2021-44768

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