CVE-2021-32928

highpriority · track · 39EPSS 0.013 · 69 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.25% (69th) EPSS

CVSS 7.5 · high

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

The Sentinel LDK Run-Time Environment installer (Versions 7.6 and prior) adds a firewall rule named “Sentinel License Manager” that allows incoming connections from private networks using TCP Port 1947. While uninstalling, the uninstaller fails to close Port 1947.

remediations

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

No vendor fix yet; a mitigation is available.

MitigationSentinel LDK Run-Time Environmentcisa_csaf_ot
Ensure TCP Port 1947 is closed.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.6criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · CISA US

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/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-459USCWE-459US

affected products (4)

Products and version ranges known to be affected.

Sentinel LDK Run-Time Environment: Versions 7.6 and priorall versionscisa_csaf_otUS
Thales Sentinel LDK Run-Time Environment≤ 7.6cisa_csaf_otUS
n/a Sentinel LDK Run-Time Environment≤ Versions 7.6 and priorenisa_euvdEU
thalesgroup sentinel ldk run-time environment≤ 7.6nvdUScpe:2.3:a:thalesgroup:sentinel_ldk_run-time_environment:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-159-06Thales Sentinel LDK Run-Time Environment2021-06-08icsa · cisa_csaf_otUS
Products that have uninstalled software using the Sentinel LDK Run-Time Environment, may have a port left open that may allow an attacker to connect.

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 2021-06-16modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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