Broken or risky cryptographic algorithm in NETGEAR R6700
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- 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-327.
Summary
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the encryption of firmware update images. The issue results from the use of an inappropriate encryption algorithm. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9649.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NETGEAR | R6700 | V1.0.4.84_10.0.58 | — | No fix listed | CNA |
- R6700 VendorNETGEAR Affected V1.0.4.84_10.0.58 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10927
- 2026-10-03 Alias added: GHSA-22qf-w2wm-5686
References
More NETGEAR R6700 Firmware vulnerabilities
- TI-2016-05377 NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before… KEVCVSS 3.1HIGH 8.8
- TI-2020-08805 Stack-based buffer overflow in NETGEAR R6700 CVSS 3.1HIGH 8.8
- TI-2020-08804 Authentication bypass in NETGEAR R6700 CVSS 3.1HIGH 8.8
- TI-2023-16567 Netgear D6220 with Firmware Version 1.0.0.80, D8500 with Firmware Version 1.0.3.60, R6700… CVSS 3.1HIGH 8.8
- TI-2022-10624 Buffer overflow in NETGEAR R6700v3 CVSS 3.1HIGH 8.8
- TI-2020-12311 Stack-based buffer overflow in NETGEAR Multiple Routers CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-10927 · CVE Program
- CVE-2020-10927 · NVD
- FIRST EPSS
- GHSA-22qf-w2wm-5686 · 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