Vulnerability Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Netgear | R6400 Firmware | < 1.0.4.126 |
| Netgear | R6400 | v2 |
| Netgear | R6700 Firmware | < 1.0.4.126 |
| Netgear | R6700 | v3 |
| Netgear | R6900P Firmware | < 1.3.3.148 |
| Netgear | R6900P | - |
| Netgear | R7000 Firmware | < 1.0.11.134 |
| Netgear | R7000 | - |
| Netgear | R7000P Firmware | < 1.3.3.148 |
| Netgear | R7000P | - |
| Netgear | R7850 Firmware | < 1.0.5.84 |
| Netgear | R7850 | - |
| Netgear | R7960P Firmware | < 1.4.3.88 |
| Netgear | R7960P | - |
| Netgear | R8000 Firmware | < 1.0.4.84 |
| Netgear | R8000 | - |
| Netgear | R8000P Firmware | < 1.4.3.88 |
| Netgear | R8000P | - |
| Netgear | Rax200 Firmware | < 1.0.6.138 |
| Netgear | Rax200 | - |
Related Weaknesses (CWE)
References
- https://kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-523/Third Party AdvisoryVDB Entry
- https://kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-523/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2022-27646?
CVE-2022-27646 is a vulnerability with a CVSS score of 8.8 (HIGH). This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit th...
How severe is CVE-2022-27646?
CVE-2022-27646 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-27646?
Check the references section above for vendor advisories and patch information. Affected products include: Netgear R6400 Firmware, Netgear R6400, Netgear R6700 Firmware, Netgear R6700, Netgear R6900P Firmware.