CVE-2021-31558

mediumpriority · track · 28EPSS 0.106 · 96 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

10.6% (96th) EPSS

CVSS 4.3 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

DIAEnergie Version 1.7.5 and prior is vulnerable to stored cross-site scripting when an unauthenticated user injects arbitrary code into the parameter “descr” of the script “DIAE_hierarchyHandler.ashx”.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationDIAEnergiecisa_csaf_ot
Delta Electronics has fixed the reported vulnerabilities and recommends users upgrade to version 1.9 or later.
https://downloadcenter.deltaww.com/en-US/DownloadCenter?v=1&q=DIAEnergie%20V1.9&sort_expr=cdate&sort_dir=DESC

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · CISA US

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · ics-cert@hq.dhs.gov USexploitability 2.8 · impact 3.6

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79US

affected products (4)

Products and version ranges known to be affected.

DIAEnergie: All versions prior to 1.9all versionscisa_csaf_otUS
Delta Electronics DIAEnergie< 1.9cisa_csaf_otUS
Delta Electronics DIAEnergie≤ All ≤1.7.5enisa_euvdEU
deltaww diaenergie≤ 1.7.5nvdUScpe:2.3:a:deltaww:diaenergie:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-238-03Delta Electronics DIAEnergie (Update C)2021-08-26icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to retrieve passwords in cleartext, remotely execute code, cause a user to carry out an action unintentionally, or log in and use the device with administrative privileges.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2021-12-22modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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