CVE-2021-22816 - CVE House
Back to Database
Status published High CVE-2021-22816

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability...

Vulnerability Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a Denial of Service of the RTU when receiving a specially crafted request over Modbus, and the RTU is configured as a Modbus server. Affected Products: SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware V8.18.1 and prior

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-22816

Credits & Attribution

No credits recorded in the NVD database.

References

More from schneider-electric

View All →
CVE-2021-22827
A CWE-20: Improper Input Validation vulnerability exists that could cause...
High 8.8
CVE-2021-22826
A CWE-20: Improper Input Validation vulnerability exists that could cause...
High 8.8
CVE-2021-22825
A CWE-200: Exposure of Sensitive Information to an Unauthorized Actor...
Unknown 0
CVE-2021-22822
A CWE-79 Improper Neutralization of Input During Web Page Generation...
Medium 6.1
CVE-2021-22821
A CWE-918 Server-Side Request Forgery (SSRF) vulnerability exists that could...
High 8.6

Affected Vendor

schneider-electric

View all reports →

Affected Software

scadapack 312e firmware, scadapack 313e firmware, scadapack 314e firmware, scadapack 330e firmware, scadapack 333e firmware, scadapack 334e firmware, scadapack 337e firmware, scadapack 350e firmware, scadapack 357e firmware
Vulnerable Versions:
0

Timeline

Official Publish: January 28th, 2022
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.