CVE-2021-31791Network attack vector

Password disclosure via failed or timed-out commands

Published Apr 23, 2021 · Updated Aug 3, 2024

Cleartext password exposure in Sentry Software Hardware Sentry KM before 10.0.01 allows remote attackers to read credentials after a command error. When a monitoring command fails or times out, the product leaves its associated password discoverable in plain text; the vendor does not identify the affected code path or exposure surface. The command must fail or time out, and the bounded consequence is password disclosure rather than data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext password exposure in Sentry Software Hardware Sentry KM before 10.0.01 allows remote attackers to read credentials after a command error. When a monitoring command fails or times out, the product leaves its associated password discoverable in plain text; the vendor does not identify the affected code path or exposure surface. The command must fail or time out, and the bounded consequence is password disclosure rather than data modification or service interruption.

The record

CVE
CVE-2021-31791
Published
Apr 23, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-312, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552Unsecured Credentials

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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