CVE-2023-23110 Other in n/a

High 7.4 Published 2 Feb 2023 Updated 26 Mar 2025

Attackers can modify firmware images via MITM attacks due to weak checksum verification, potentially leading to code execution on affected Netgear devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-23110?

CVE-2023-23110 is a high-severity vulnerability in Netgear D6100 Firmware, published on 2 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable firmware modification vulnerability was discovered in certain Netgear products. The data integrity of the uploaded firmware image is ensured with a fixed checksum number. Therefore, an attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the checksum verification. This affects WNR612v2 Wireless Routers 1.0.0.3 and earlier, DGN1000v3 Modem Router 1.0.0.22 and earlier, D6100 WiFi DSL Modem Routers 1.0.0.63 and earlier, WNR1000v2 Wireless Routers 1.1.2.60 and earlier, XAVN2001v2 Wireless-N Extenders 0.4.0.7 and earlier, WNR2200 Wireless Routers 1.0.1.102 and earlier, WNR2500 Wireless Routers 1.0.0.34 and earlier, R8900 Smart WiFi Routers 1.0.3.6 and earlier, and R9000 Smart WiFi Routers 1.0.3.6 and earlier.

Weakness: CWE-494

Which versions are affected by CVE-2023-23110?

It affects 9 products.

Products include Netgear D6100 Firmware, Netgear Dgn1000v3 Firmware, Netgear R8900 Firmware, Netgear R9000 Firmware, Netgear Wnr1000v2 Firmware, Netgear Wnr2200 Firmware and 3 more.

How do I fix CVE-2023-23110?

No fix has been published for CVE-2023-23110 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-23110 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23110 exists.

All Netgear D6100 Firmware vulnerabilities

Sources

Also known as GHSA-6fpf-rgcx-jmrx.