Integer overflow in NETGEAR R6700v3
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.
Why it matters now
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 |
|---|---|---|---|---|---|
| NETGEAR | R6700v3 | 1.0.4.120_10.0.91 | — | No fix listed | CNA |
- R6700v3 VendorNETGEAR Affected 1.0.4.120_10.0.91 Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:* | before 1.0.1.68 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:* | before 1.0.1.90 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:ex6200:v2:*:*:*:*:*:*:* | v2 | Running on | NETGEAR |
| cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:* | before 1.0.1.240 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* | before 1.1.0.112 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:* | before 1.1.0.112 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.68 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.90 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:ex6200:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
- cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.240 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.112 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.112 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* | before 1.0.4.122 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6400:v2:*:*:*:*:*:*:* | v2 | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* | before 1.0.4.122 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6700:v3:*:*:*:*:*:*:* | v3 | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* | before 1.0.11.130 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* | before 1.0.2.90 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* Versions before 1.0.4.122 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6400:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
- cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* Versions before 1.0.4.122 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6700:v3:*:*:*:*:*:*:* Versions v3 Running on ·NETGEAR
- cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.11.130 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.90 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-27641
- 2026-10-03 Alias added: GHSA-48fv-6rrf-3cqx
References
More NETGEAR D7800 Firmware vulnerabilities
- TI-2016-08250 The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter… KEVCVSS 3.1CRITICAL 9.8
- TI-2021-20695 Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected… CVSS 3.1CRITICAL 9.8
- TI-2021-20705 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-16116 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1CRITICAL 10.0
- TI-2021-16129 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-09955 Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. CVSS 3.1CRITICAL 9.9
Sources
- CVE-2022-27641 · CVE Program
- CVE-2022-27641 · NVD
- FIRST EPSS
- GHSA-48fv-6rrf-3cqx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences