CVE-2021-22783

Unauthenticated adjacent-network session hijacking

Published Mar 9, 2022 · Updated Aug 3, 2024

Information exposure in Schneider Electric Ritto Wiser Door all versions allows attackers on an adjacent network to hijack a session. The vendor states only that exposure occurs while the door panel communicates with the door and has not disclosed the exposed data, protocol field, or faulty operation. No authentication or user interaction is required, and a hijacked session can affect confidentiality, integrity, and availability.

CVSS severity7.6
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Schneider Electric Ritto Wiser Door all versions allows attackers on an adjacent network to hijack a session. The vendor states only that exposure occurs while the door panel communicates with the door and has not disclosed the exposed data, protocol field, or faulty operation. No authentication or user interaction is required, and a hijacked session can affect confidentiality, integrity, and availability.

The record

CVE
CVE-2021-22783
Published
Mar 9, 2022
Updated
Aug 3, 2024
Vendor
Distributed Data Systems
Product
Ritto Wiser Door
Classifications
CWE-200
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=All versions

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Distributed Data Systems · Ritto Wiser Doorversion=All versions

Published CVSS scores

7.6NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
8.8Schneider Electric SECVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.8NIST NVDAV:A/AC:L/Au:N/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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