CVE-2021-32928
No exploitation reported by the sources we read.
- Published2021-06-16
- WeaknessCWE-459
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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.
Timeline
dates in UTC- 2021-06-1613:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-32928?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-32928?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 7.6 | ≤ 7.6 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Thales Sentinel LDK Run-Time Environment
Sentinel LDK Run-Time Environment: Versions 7.6 and prior
Fix
- Mitigation from the vendor CISA ICSA-21-159-06 · 1 productThales recommends vendors and users to upgrade to RTE Version 8.15 or later.
- Mitigation from the vendor CISA ICSA-21-159-06 · 1 productIf uninstalling with affected version, ensure “purge option” is selected. The purge option removes the Sentinel License Manager and closes the port.
- Mitigation from the vendor CISA ICSA-21-159-06 · 1 productEnsure TCP Port 1947 is closed.
- Mitigation from the vendor CISA ICSA-21-159-06 · 1 productIf possible, implement appropriate IDS/IPS measures against TCP Port 1947
- Mitigation from the vendor CISA ICSA-21-159-06 · 1 productHalliburton GOHFER: Update to Version 9.1.3.57 thru 9.2.x.xx and when uninstalling select the purge option. Upon uninstalling, the purge option removes the Sentinel License Manager and closes the port. Subsequent versions of GOHFER will no longer use Sentinel LDK.
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.07.5read 2026-10-23
- CNAweakness (CWE)CWE-459read 2026-10-23
- FIRST EPSSEPSS score1.3 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-06-16
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-32928?
Is CVE-2021-32928 actively exploited?
What is the CVSS score for CVE-2021-32928?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.