Schneider Electric Modicon M580 CPU Project File out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Schneider Electric Modicon M580 CPU, Modicon M340 CPU, Modicon MC80, Modicon Momentum Ethernet CPU, PLC Simulator for EcoStruxure, Modicon Quantum CPU and Modicon Premium CPU. Affected is an unknown function of the component Project File Handler. Performing a manipulation results in out-of-bounds write. This vulnerability was named CVE-2021-22791. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Schneider Electric Modicon M580 CPU, Modicon M340 CPU, Modicon MC80, Modicon Momentum Ethernet CPU, PLC Simulator for EcoStruxure, Modicon Quantum CPU and Modicon Premium CPU (SCADA Software). This affects an unknown code of the component Project File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 09/02/2021 as SEVD-2021-222-06. It is possible to read the advisory at download.schneider-electric.com. This vulnerability is uniquely identified as CVE-2021-22791. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

ADP CISA Base Score: 6.5
ADP CISA Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2021 🔍
09/02/2021 +238 days 🔍
09/02/2021 +0 days 🔍
05/30/2026 +1731 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2021-222-06
Status: Confirmed

CVE: CVE-2021-22791 (🔍)
GCVE (CVE): GCVE-0-2021-22791
GCVE (VulDB): GCVE-100-181983

Entryinfo

Created: 09/02/2021 22:54
Updated: 05/30/2026 20:42
Changes: 09/02/2021 22:54 (38), 09/09/2021 13:28 (2), 05/30/2026 20:42 (42)
Complete: 🔍
Cache ID: 216::103

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