CVE-2021-21876

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Published Dec 22, 2021 CVSS 3.1 · 9.1 Critical EPSS 2.8% KEV · Not listed

Description

Specially-crafted HTTP requests can lead to arbitrary command execution in PUT requests. An attacker can make authenticated HTTP requests to trigger this vulnerability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

Lantronix

affected

Version	Status	Constraints
`Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4:*:*:*:*:*:*

cpe:2.3:h:lantronix:premierwave_2050:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-9047	Specially-crafted HTTP requests can lead to arbitrary command execution in PUT requests. An attacker can make authenticated HTTP requests to trigger this vulnerability.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.8% (2.783% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1315

History

No history.

Subscriptions

Lantronix Premierwave 2050 Premierwave 2050 Firmware

Weaknesses

CWE-78

Sources

CVE record Updated: Aug 3, 2024, 6:23 PM

Status: PUBLISHED
Assigner: talos
Published: Dec 22, 2021, 6:06 PM
Updated: Aug 3, 2024, 6:23 PM
Reserved: Jan 4, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:36 AM

Status: Modified
Published: Dec 22, 2021, 7:15 PM
Modified: Jun 17, 2026, 3:36 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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