CVE-2021-3321

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal

View on CVE.org

Published Oct 12, 2021 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Description

Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

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

zephyrproject-rtos

zephyr

affected

Version	Status	Constraints
`>=2.4.0`	affected	< unspecified

Configuration 1 [-]

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

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-2021-26652	Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Adjacent Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.761% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99

History

No history.

Subscriptions

Zephyrproject Zephyr

Weaknesses

Sources

CVE record Updated: Sep 16, 2024, 10:51 PM

Status: PUBLISHED
Assigner: zephyr
Published: Oct 12, 2021, 9:50 PM
Updated: Sep 16, 2024, 10:51 PM
Reserved: Jan 27, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:04 AM

Status: Modified
Published: Oct 12, 2021, 10:15 PM
Modified: Jun 17, 2026, 4:04 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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