CVE-2020-3997

lowpriority · track · 22EPSS 0.007 · 52 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 3.5 · low

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0) contains a Cross Site Scripting (XSS) vulnerability. Successful exploitation of this issue may allow an attacker to inject malicious script which will be executed.

cvss

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

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.4

v2.03.5lowAV:N/AC:M/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.15.4mediumAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/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-79USprimaryCWE-79US

affected products (5)

Products and version ranges known to be affected.

n/a VMware Horizon Server≤ VMware Horizon Server (7.x prior to 7.10.3 or 7.13.0)enisa_euvdEU
Omnissa Omnissa Horizon7.0 → 7.10.3fstec_bduRU
Omnissa Omnissa Horizon7.11.0 → 7.13.0fstec_bduRU
vmware horizon7.0 → 7.10.3nvdUScpe:2.3:a:vmware:horizon:*:*:*:*:*:*:*:*
vmware horizon7.11.0 → 7.13.0nvdUScpe:2.3:a:vmware:horizon:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-10-23modified 2026-06-17

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+53061 more

references (6)

External citations — patches, advisories, analysis.

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