Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line.

published 2021-08-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8984

cvss: 7.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits: 0; none known

Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to memcpy copying the path provided by the user into a staticly sized buffer without any length checks resulting in a stack-buffer overflow.

Vendor advisories

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

cisa ICSA-22-223-03 updated 2022-08-11 cvss 7.8

Schneider Electric EcoStruxure, EcoStruxure Process Expert, SCADAPack RemoteConnect for x70

Schneider Electric Software, LLC EcoStruxure Control Expert < 15.1 HF001 (including former Unity Pro) Schneider Electric Software, LLC EcoStruxure Process Expert < 2021 (including former HDCS) Schneider Electric Software, LLC SCADAPack RemoteConnect for x70 < R2.7.3
affected: mitigation “AT&T Labs have stated this software is longer supported and recommends vendors to move away from using it.” se.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

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2021-1280 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a AT&T

Classification

Weakness

CWE-787 Out-of-bounds Write

References

talosintelligence.com /vulnerability_reports/TALOS-2021-1280
exploit, third-party-advisory

Sources

CVE List CVE-2021-21813
NVD CVE-2021-21813

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