CVE-2021-21884

highpriority · track · 38EPSS 0.053 · 93 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

5.27% (93rd) EPSS

CVSS 9 · high

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

An OS command injection vulnerability exists in the Web Manager SslGenerateCSR functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

cvss

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

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.3 · impact 6

v3.09.1criticalCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.09.1criticalCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · talos-cna@cisco.com USexploitability 2.3 · impact 6

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimary

affected products (2)

Products and version ranges known to be affected.

n/a Lantronix≤ Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)enisa_euvdEU
lantronix premierwave 2050 firmware= 8.9.0.0nvdUScpe:2.3:o:lantronix:premierwave_2050_firmware:*:*:*:*:*:*:*:*

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 2021-12-22modified 2026-06-17

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references (5)

External citations — patches, advisories, analysis.

https://nvd.nist.gov/vuln/detail/CVE-2021-21884 cnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1328 cnnvd
https://www.lantronix.com/products/premierwave2050/Patchcnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1328 enisa_euvd
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1328ExploitTechnical DescriptionThird Party Advisorynvd

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