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Vulnerability record · CVE-2023-23110 · published 2 February 2023

CVE-2023-23110: Netgear wnr612v2 firmware download of code without integrity check vulnerability

Netgear · Wnr612v2 Firmware

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.

7.4 CVSS 3.1 High EPSS 0.57% · top 53.9% CWE-494 · Download of code without integrity check
7.4CVSS 3.1 base score
0.57%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
20References, 18 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

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

References

LinkTags
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/BkBPIeGco ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/H1lIcXbco ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/HyZRxmb9s ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1BNhbWqi ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1qWglM5o ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1t47Ebqj ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/SJCGkb-9o ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/r1Z4BX-5i ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/ryjVZz-5s ExploitThird Party Advisory
https://www.netgear.com/about/security/ Vendor Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/BkBPIeGco ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/H1lIcXbco ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/HyZRxmb9s ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1BNhbWqi ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1qWglM5o ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1t47Ebqj ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/SJCGkb-9o ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/r1Z4BX-5i ExploitThird Party Advisory
https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/ryjVZz-5s ExploitThird Party Advisory
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.

9.8CVE-2016-10174NETGEAR router buffer overflow in hidden_lang_avi parameterThe NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. An unauth…KEVEPSS 83%analysed9.8CVE-2021-45658Netgear d7800 firmware injection vulnerabilityCertain NETGEAR devices are affected by server-side injection. This affects D7800 before 1.0.1.58, DM200 before 1.0.0.66, EX2700 before 1.0.1.56, EX6…EPSS 0.82%9.8CVE-2021-45623Netgear r7800 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.2.74, R9000 before 1.0.5.2, a…EPSS 1.7%9.8CVE-2021-45618Netgear d7800 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.64, EX6200v2 before 1.0.1.8…EPSS 2.0%9.8CVE-2021-45619Netgear ex6250 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects EX6200v2 before 1.0.1.86, EX6250 before 1.0.0.…EPSS 2.5%9.8CVE-2021-38529Netgear d7800 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.56, R7800 before 1.0.2.68, …EPSS 1.7%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-2020-35799Netgear d3600 firmware out-of-bounds write vulnerabilityCertain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.76, D6000 befor…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-23110), CISA KEV, FIRST EPSS (scores of 2026-10-14). This page is refreshed as NVD updates the record.