CVE-2021-21547

lowpriority · track · 27OT risk · elevatedEPSS 0.001 · 4 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.14% (4th) EPSS

CVSS 2.1 · low

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Dell EMC Unity, UnityVSA, and Unity XT versions prior to 5.0.7.0.5.008 contain a plain-text password storage vulnerability when the Dell Upgrade Readiness Utility is run on the system. The credentials of the Unisphere Administrator are stored in plain text. A local malicious user with high privileges may use the exposed password to gain access with the privileges of the compromised user.

cvss

Technical severity, 0–10. One row per scoring source.

6.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–6.7

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · security_alert@emc.comexploitability 0.5 · impact 5.9

v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USprimary

affected products (4)

Products and version ranges known to be affected.

Dell Unityunspecified → 5.0.7.0.5.008enisa_euvdEU
dell unity operating environment< 5.0.7.0.5.008nvdUScpe:2.3:a:dell:unity_operating_environment:*:*:*:*:*:*:*:*
dell unity xt operating environment< 5.0.7.0.5.008nvdUScpe:2.3:a:dell:unity_xt_operating_environment:*:*:*:*:*:*:*:*
dell unityvsa operating environment< 5.0.7.0.5.008nvdUScpe:2.3:a:dell:unityvsa_operating_environment:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-04-30modified 2026-06-17

related (1,243)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2023-22894US	medium4.9OT critical	4.11% (91st)	KEV	2023-04-19
Strapi through 4.5.5 allows attackers (with access to the admin panel) to discover sensitive user details by exploiting the query filter. The attacker can filter users by columns t…
CVE-2020-29583US	critical9.8OT critical	90.2% (100th)	KEV	2020-12-22
Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the fi…
CVE-2011-4723US	medium6.8OT critical	3.06% (88th)	KEV	2011-12-20
The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information via unspecified vectors.
CVE-2023-50719US	high7.5OT high	83.5% (100th)	—	2023-12-15
XWiki Platform is a generic wiki platform. Starting in 7.2-milestone-2 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, the Solr-based search in XWiki discloses the password…
CVE-2022-26148US	critical9.8OT high	52.5% (99th)	—	2022-03-21
An issue was discovered in Grafana through 7.3.4, when integrated with Zabbix. The Zabbix password can be found in the api_jsonrpc.php HTML source code. When the user logs in and a…

+1238 more

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan