CVE-2023-34563

CRITICALNVD 9.89.8—Elevated

9.8

netgear R6250 Firmware Version 1.0.4.48 is vulnerable to Buffer Overflow after authentication.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 95.3%
KEV: Not listed

Published

June 20, 2023

Last Modified

December 9, 2024

Advisory Details (2)

Auto-updated Jun 5, 2026

No patch confirmed yet.

generic

Product Security & Vulnerability Reporting | NETGEAR

https://www.netgear.com/about/security/

generic

CVE/Netgear/CVE-2023-34563/EN.md at main · D2y6p/CVE · GitHub

https://github.com/D2y6p/CVE/blob/main/Netgear/CVE-2023-34563/EN.md

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 16× 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.

2026-06-06 13:46 UTCepss_batch
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Frequently asked(5)

What is CVE-2023-34563?

CVE-2023-34563 is a critical vulnerability published on June 20, 2023. netgear R6250 Firmware Version 1.0.4.48 is vulnerable to Buffer Overflow after authentication.

When was CVE-2023-34563 disclosed?

CVE-2023-34563 was first published in the National Vulnerability Database on June 20, 2023, with the most recent update on December 9, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-34563 actively exploited?

CVE-2023-34563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-34563?

CVE-2023-34563 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-34563?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-34563, 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-2023-34563

📅 Published

🔄 Last Modified

📋 Advisory Details (2)