CVE-2022-23242

Remote access via retained connection password

Published Mar 23, 2022 · Updated Sep 16, 2024

Improper credential deletion in TeamViewer for Linux 15.27 and earlier allows remote attackers to reuse a connection password after a crash. A crash prevents the password-deletion command from clearing the prior connection password, leaving that credential accepted for a later session. Exploitation requires the TeamViewer ID and crash knowledge, plus either the prior password or local authenticated access; Easy Access or MFA prevents exploitation.

CVSS severity6.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper credential deletion in TeamViewer for Linux 15.27 and earlier allows remote attackers to reuse a connection password after a crash. A crash prevents the password-deletion command from clearing the prior connection password, leaving that credential accepted for a later session. Exploitation requires the TeamViewer ID and crash knowledge, plus either the prior password or local authenticated access; Easy Access or MFA prevents exploitation.

The record

CVE
CVE-2022-23242
Published
Mar 23, 2022
Updated
Sep 16, 2024
Vendor
TeamViewer
Product
TeamViewer Full Client
Classifications
CWE-404, T1133
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=15.27 <=15.27

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

TeamViewer · TeamViewer Full Clientversion=15.27 <=15.27

Published CVSS scores

6.3TeamViewerCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
1.9NVDAV:L/AC:M/Au:N/C:N/I:P/A:N
4.2NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N
6.3TeamViewer CNACVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-404Improper Resource Shutdown or Release
T1133External Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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