A CWE-763: Release of invalid pointer or reference vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could resu…

published 2021-06-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9895

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits: 0; none known

A CWE-763: Release of invalid pointer or reference vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in loss of data or remote code execution due to missing checks of user-supplied input data, when a malicious CGF file is imported to IGSS Definition.

Vendor advisories

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

cisa ICSA-21-159-04 updated 2021-06-08 cvss 7.8

Schneider Electric IGSS

Schneider Electric Software, LLC IGSS Definition (Def.exe) <= 15.0.0.21140
affected: mitigation “If users choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploitation:” igss.schneider-electric.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

Exploit prediction

1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

n/a IGSS Definition (Def.exe) V15.0.0.21140 and prior

Classification

Weakness

CWE-763 Release of Invalid Pointer or Reference

References

download.schneider-electric.com /files?p_Doc_Ref=SEVD-2021-159-01
vendor-advisory

Sources

CVE List CVE-2021-22760
NVD CVE-2021-22760

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