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Vulnerability record · CVE-2023-30280 · published 26 April 2023

CVE-2023-30280: Netgear r6900 firmware classic buffer overflow vulnerability

Netgear · R6900 Firmware

Buffer Overflow vulnerability found in Netgear R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, R6700 v.1.0.0.26 allows a remote attacker to execute arbitrary code and cause a denial ofservice via the getInputData parameter of the fwSchedule.cgi page.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 32.2% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Buffer Overflow vulnerability found in Netgear R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, R6700 v.1.0.0.26 allows a remote attacker to execute arbitrary code and cause a denial ofservice via the getInputData parameter of the fwSchedule.cgi page.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ Not Applicable
https://www.netgear.com/about/security/ Vendor Advisory
https://github.com/ Not Applicable
https://www.netgear.com/about/security/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2016-6277NETGEAR router cgi-bin command injection allows remote code executionMultiple NETGEAR router models fail to sanitize shell metacharacters in the path info passed to cgi-bin/, allowing remote command execution. The flaw…KEVEPSS 100%analysed9.8CVE-2021-45512Netgear d7000 firmware broken cryptographic algorithm vulnerabilityCertain NETGEAR devices are affected by weak cryptography. This affects D7000v2 before 1.0.0.62, D8500 before 1.0.3.50, EX3700 before 1.0.0.84, EX380…EPSS 0.54%9.8CVE-2021-38516Netgear d6220 firmware vulnerabilityCertain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before 1.0.0.48, D6400 before 1.0.0.82, D700…EPSS 1.3%9.8CVE-2020-35795Netgear ac2100 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before 1.2.0.72, AC2400 before 1.2.0.72…EPSS 1.2%9.8CVE-2020-35796Netgear cbr40 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects CBR40 before 2.5.0.10, D6220 before 1.0.0.60, …EPSS 1.3%9.8CVE-2020-26927Netgear ac2100 firmware vulnerabilityCertain NETGEAR devices are affected by authentication bypass. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.42, R60…EPSS 1.1%9.8CVE-2020-26908Netgear d6200 firmware vulnerabilityCertain NETGEAR devices are affected by authentication bypass. This affects D6200 before 1.1.00.36, D7000 before 1.0.1.74, PR2000 before 1.0.0.30, R6…EPSS 2.1%9.8CVE-2020-15636Netgear r6700 firmware stack-based buffer overflow vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R6400, R6700, R7000, R7850, R7900, R8000, R…EPSS 8.5%

Source: NIST National Vulnerability Database (record CVE-2023-30280), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.