CVE-2021-27233Network attack vector

External-system password disclosure via cleartext admin rendering

Published Feb 16, 2021 · Updated Aug 3, 2024

Cleartext credential exposure in Mutare Voice 3.0.0 through 3.3.7 allows remote authenticated users to read external-system passwords. The admin-facing Settings.asp page renders stored external-system password values in readable form instead of masking or obfuscating them. Administrator access to the web portal is required, and the exposure discloses secrets for connected systems without altering data or interrupting service.

CVSS severity4.9
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential exposure in Mutare Voice 3.0.0 through 3.3.7 allows remote authenticated users to read external-system passwords. The admin-facing Settings.asp page renders stored external-system password values in readable form instead of masking or obfuscating them. Administrator access to the web portal is required, and the exposure discloses secrets for connected systems without altering data or interrupting service.

The record

CVE
CVE-2021-27233
Published
Feb 16, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-312, T1555
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 16, 2021CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1555Credentials from Password Stores

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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