CVE-2021-36317

Credential disclosure via plaintext password storage

Published Dec 21, 2021 · Updated Sep 16, 2024

Plaintext password storage in AvInstaller in Dell EMC Avamar Server 19.4 allows local users to disclose stored user credentials. AvInstaller stores certain user passwords in plaintext rather than protecting them from local disclosure. Exploitation requires high local privileges and exposes credentials that grant the compromised account's application privileges.

CVSS severity6.7
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Plaintext password storage in AvInstaller in Dell EMC Avamar Server 19.4 allows local users to disclose stored user credentials. AvInstaller stores certain user passwords in plaintext rather than protecting them from local disclosure. Exploitation requires high local privileges and exposes credentials that grant the compromised account's application privileges.

The record

CVE
CVE-2021-36317
Published
Dec 21, 2021
Updated
Sep 16, 2024
Vendor
Dell
Product
Avamar
Classifications
CWE-256, CWE-522, T1552
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 21, 2021CVE 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=19.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Avamarversion=19.4

Published CVSS scores

6.7DellCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
2.1NISTAV:L/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
CWE-522Insufficiently Protected Credentials
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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