CVE-2022-20953

Keystroke disclosure via overprivileged system commands

Published Oct 26, 2022 · Updated Oct 25, 2024

Information disclosure in Cisco RoomOS allows local users to monitor keystrokes from an attached USB keyboard via crafted requests. Excessive permissions on system commands allow a crafted request to expose keyboard input handled by the device. Exploitation requires low-privileged local access, an attached USB keyboard, and user interaction, and the reported consequence is keystroke disclosure only.

CVSS severity5.0
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cisco RoomOS allows local users to monitor keystrokes from an attached USB keyboard via crafted requests. Excessive permissions on system commands allow a crafted request to expose keyboard input handled by the device. Exploitation requires low-privileged local access, an attached USB keyboard, and user interaction, and the reported consequence is keystroke disclosure only.

The record

CVE
CVE-2022-20953
Published
Oct 26, 2022
Updated
Oct 25, 2024
Vendor
ClamAV
Product
Cisco RoomOS
Classifications
CWE-200, T1056.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ClamAV · Cisco RoomOSversion=n/a

Published CVSS scores

5.0CiscoCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1056.001Input Capture: Keylogging

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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