TI-2022-22948 Aliases CVE-2022-46423 GHSA-6662-6w2g-g564

An exploitable firmware modification vulnerability was discovered on the Netgear…

LOW 38CWE-494Published 2022-12-20 · Updated 2025-04-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-494.

Summary

An exploitable firmware modification vulnerability was discovered on the Netgear WNR2000v1 router. An attacker can conduct a MITM (Man-in-the-Middle) attack to modify the user-uploaded firmware image and bypass the CRC check, allowing attackers to execute arbitrary code or cause a Denial of Service (DoS). This affects v1.2.3.7 and earlier.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00429 37th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:netgear:wnr2000_firmware::::::::	up to 1.2.3.7	Vulnerable	NETGEAR
cpe:2.3:h:netgear:wnr2000:1.0:::::::*	1.0	Running on	NETGEAR

cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.3.7 Vulnerable ·NETGEAR
cpe:2.3:h:netgear:wnr2000:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-46423
2026-10-03 Alias added: GHSA-6662-6w2g-g564

References

Advisory 1

https://www.netgear.com/about/security/

Other 1

https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/BktKl8ZDo

TI-2017-04600 Buffer overflow in NETGEAR All versions prior to WNR2000v3 1.1.2.14, WNR2000v4 1.0.0.66… KEVCVSS 3.1CRITICAL 9.8
TI-2023-27381 A Command Injection vulnerability exists in NETGEAR WNR2000v4 version 1.0.0.70. CVSS 3.1CRITICAL 9.8
TI-2018-15115 Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
TI-2017-13916 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
TI-2017-13914 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
TI-2017-13892 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1HIGH 8.8

See all 92 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences