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No exploitation reportedFix available

CVE-2021-22803

No exploitation reported by the sources we read.

  • Published2022-02-11
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could lead to remote code execution through a number of paths, when an attacker, writes arbitrary files to folders in context of the DC module, by sending constructed messages on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

Timeline

dates in UTC
  1. 2022-02-1118:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-22803?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-22803?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Schneider-electric interactive graphical scada system data collector
BranchAffectedFixed in
15.0≤ 15.0.0.21243no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-21-285-03 CISA1 known affected

    Schneider Electric IGSS

    IGSS Data Collector (dc.exe): v15.0.0.21243 and prior

Full record on NVD

Fix

  1. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productSchneider Electric recommends users update to Version 15.0.0.21244 of the IGSS DC module. Please note, dc.exe includes fixes for these vulnerabilities and is available for download through IGSS Master > Update IGSS Software or at the IGSS update link.
  2. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productUsers should employ appropriate patching methodologies. Schneider Electric strongly recommends the use of backups as well as an evaluation of the impact of these patches in a test and development environment or an offline infrastructure. Contact Schneider Electric's Customer Care Center if you need…
  3. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productIf users choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit:
  4. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productOnly accept incoming connections from machines, which names have been added as a station in the IGSS System Configuration module by setting the registry key called “MatchWinName” to 1 under: “HKEY_CURRENT_USER\SOFTWARE\SchneiderElectric\IGSS32\V15.00.00\DC_HKLM\”
  5. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productFollow the general security recommendation below and verify devices are isolated on a private network and firewalls are configured with strict boundaries for devices that require remote access.
  6. Mitigation from the vendor CISA ICSA-21-285-03 · 1 productFor more information see Schneider Electric's security notification: SEVD-2021-285-03

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-434read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-02-11
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-22803?

A CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could lead to remote code execution through a number of paths, when an attacker, writes arbitrary files to folders in context of the DC module, by sending constructed messages on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

Is CVE-2021-22803 actively exploited?

Active exploitation of CVE-2021-22803 has not been confirmed. Its EPSS score was 1.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-22803?

CVE-2021-22803 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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