How severe is CVE-2022-24321?

CVE-2022-24321 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-24321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-24321?

CVE-2022-24321 primarily affects Schneider-electric Clearscada. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-24321?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-24321 published?

CVE-2022-24321 was published on 2022-02-09 and last updated on 2026-06-17.

CVE-2022-24321

CVE-2022-24321 is a high-severity vulnerability in Schneider-electric Clearscada with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-754.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-754
Affected product: Schneider-electric Clearscada
Published: 2022-02-09
Last modified: 2026-06-17

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause Denial of Service against the Geo SCADA server when receiving a malformed HTTP request. Affected Product: ClearSCADA (All Versions), EcoStruxure Geo SCADA Expert 2019 (All Versions), EcoStruxure Geo SCADA Expert 2020 (All Versions)

Frequently asked questions

What is CVE-2022-24321?: A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause Denial of Service against the Geo SCADA server when receiving a malformed HTTP request. Affected Product: ClearSCADA (All Versions), EcoStruxure Geo SCADA Expert 2019 (All Versions), EcoStruxure Geo SCADA Expert 2020 (All Versions)
How severe is CVE-2022-24321?: CVE-2022-24321 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-24321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-24321?: CVE-2022-24321 primarily affects Schneider-electric Clearscada. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-24321?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-24321 published?: CVE-2022-24321 was published on 2022-02-09 and last updated on 2026-06-17.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-05

Affected products (3)

cpe:2.3:a:schneider-electric:clearscada:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:ecostruxure_geo_scada_expert_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:ecostruxure_geo_scada_expert_2020:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Clearscada

CVE-2019-6854 — High (CVSS 7.8): A CWE-287: Improper Authentication vulnerability exists in a folder within EcoStruxure Geo SCADA Expert (ClearSCADA)…
CVE-2022-24318 — High (CVSS 7.5): A CWE-326: Inadequate Encryption Strength vulnerability exists that could cause non-encrypted communication with the…
CVE-2017-6021 — High (CVSS 7.5): In Schneider Electric ClearSCADA 2014 R1 (build 75.5210) and prior, 2014 R1.1 (build 75.5387) and prior, 2015 R1 (build…
CVE-2021-22741 — Medium (CVSS 6.7): Use of Password Hash with Insufficient Computational Effort vulnerability exists in ClearSCADA (all versions),…
CVE-2022-24320 — Medium (CVSS 5.9): A CWE-295: Improper Certificate Validation vulnerability exists that could allow a Man-in-theMiddle attack when…
CVE-2022-24319 — Medium (CVSS 5.9): A CWE-295: Improper Certificate Validation vulnerability exists that could allow a Man-in-theMiddle attack when…

All CVEs affecting Schneider-electric Clearscada →

Other CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities

CVE-2026-24054 — Critical (CVSS 10.0): Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs)…
CVE-2021-0211 — Critical (CVSS 10.0): An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing…
CVE-2026-8091 — Critical (CVSS 9.8): Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150,…
CVE-2024-52316 — Critical (CVSS 9.8): Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta…
CVE-2024-7826 — Critical (CVSS 9.8): Improper Check for Unusual or Exceptional Conditions vulnerability in Webroot SecureAnywhere - Web Shield on Windows,…
CVE-2023-37303 — Critical (CVSS 9.8): An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to…

Browse all CWE-754 (Improper Check for Unusual or Exceptional Conditions) vulnerabilities →