CVE-2023-41603

MEDIUMNVD 5.35.3—

5.3

D-Link R15 before v1.08.02 was discovered to contain no firewall restrictions for IPv6 traffic. This allows attackers to arbitrarily access any services running on the device that may be inadvertently listening via IPv6.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 45.6%
KEV: Not listed

Published

January 10, 2024

Last Modified

June 17, 2025

References (2)

cve@mitrehttps://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10347
af854a3a-2127-422b-91ae-364da2661108https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10347

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-284Improper Access Control

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-41603?

CVE-2023-41603 is a medium vulnerability published on January 10, 2024. D-Link R15 before v1.08.02 was discovered to contain no firewall restrictions for IPv6 traffic. This allows attackers to arbitrarily access any services running on the device that may be inadvertently listening via IPv6.

When was CVE-2023-41603 disclosed?

CVE-2023-41603 was first published in the National Vulnerability Database on January 10, 2024, with the most recent update on June 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-41603 actively exploited?

CVE-2023-41603 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-41603?

CVE-2023-41603 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2023-41603?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41603, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-41603

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-41603?

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Published

Last Modified

References (2)

Frequently asked(5)

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