CVE-2024-12147: Netgear R6900 HTTP Header upgrade_check.cgi buffer overflow

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-04 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in Netgear R6900 1.0.1.26_1.0.20. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file upgrade_check.cgi of the component HTTP Header Handler. The manipulation of the argument Content-Length leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

NETGEAR R6900 Firmware: 1.0.1.26_1.0.20

References

https://github.com/upload000/Hub/blob/main/IOT/Netgear_R6900.md
https://vuldb.com/?ctiid.286873
https://vuldb.com/?id.286873
https://vuldb.com/?submit.451858
https://www.netgear.com/
https://www.netgear.com/about/eos/

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