CVE-2021-22802· NVD / CVE Program· CNA schneider

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length

Noroxi assessment

Priority: Plan (action score 45/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 20.1% (FIRST EPSS); higher than 97.4% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.
Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length check on user supplied data, when a constructed message is received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

BDU:2023-02898

Published: Feb 11, 2022
Updated: Jun 16, 2026
EPSS: 20.1% · 97th percentile
CWE: CWE-120

Report tools

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 6 / 30 · 20.1%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

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Vendor	Product	CPE
schneider-electric	interactive graphical scada system data collector	cpe:2.3:a:schneider-electric:interactive_graphical_scada_system_data_collector

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

schneider-electric interactive graphical scada system data collectorup to 15.0.0.21243 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (schneider). Independent of NVD's CPE analysis and usually ahead of it.

n/a Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)
- Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)affected

Same product

schneider-electric: all records

Other highest-scoring records for the same primary product.

CVE-2021-22823A CWE-306: Missing Authentication for Critical Function vulnerability exists that could cause deletion of arbitrary files in the context of
42Plan
CVE-2021-22803A CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could lead to remote code execution through a number of
40Plan
CVE-2021-22805A CWE-306: Missing Authentication for Critical Function vulnerability exists that could cause deletion of arbitrary files in the context of
36Monitor

Published before and after this one in the same product

Later →CVE-2021-22804Feb 11, 2022 · A CWE-22: Improper Limitation of a Pathname to a Restricted Directory vulnerability exists that could cause disclosure of arbitrary files be
30Monitor
Later →CVE-2021-22824Feb 11, 2022 · A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in denial of service, due to missing length che
34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-22-0139 · Feb 14, 2022(SCADA IGSS Zafiyeti)
TR-21-0827 · Oct 13, 2021(Schneider Elektrik Güvenlik Bildirimi)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-03

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records