CVE-2021-35034

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Published Dec 29, 2021 CVSS 3.1 · 7.4 High EPSS 1.1% KEV · Not listed

Description

An insufficient session expiration vulnerability in the CGI program of the Zyxel NBG6604 firmware could allow a remote attacker to access the device if the correct token can be intercepted.

Analysis

No analysis available yet

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

Zyxel

NBG6604 series firmware

affected

Version	Status	Constraints
`1.00(ABIR.8)C0`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:zyxel:nbg6604_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:zyxel:nbg6604:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-21681	An insufficient session expiration vulnerability in the CGI program of the Zyxel NBG6604 firmware could allow a remote attacker to access the device if the correct token can be intercepted.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 1.1% (1.079% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.zyxel.com/support/Zyxel_security_advisory_for_sensitive_information_vulnerabilities_of_NBG6604_home_router.shtml

History

No history.

Subscriptions

Zyxel Nbg6604 Nbg6604 Firmware

Weaknesses

CWE-613
Insufficient Session Expiration

Sources

CVE record Updated: Aug 4, 2024, 12:33 AM

Status: PUBLISHED
Assigner: Zyxel
Published: Dec 29, 2021, 12:36 PM
Updated: Aug 4, 2024, 12:33 AM
Reserved: Jun 17, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:57 AM

Status: Modified
Published: Dec 29, 2021, 1:15 PM
Modified: Jun 17, 2026, 3:57 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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