A vulnerability classified as critical has been found in Netgear D6100, R6100, R7800, R9000, WNDR3700v4, WNDR4300 and WNR2000v5 (Wireless LAN Software). This affects some unknown functionality. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, and WNR2000v5 before 1.0.0.62.

The weakness was published 04/28/2020 (Website). The advisory is shared at kb.netgear.com. This vulnerability is uniquely identified as CVE-2018-21196 since 04/20/2020. The attack can only be initiated within the local network. A authentication is required for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Wireless LAN Software

Vendor

• Netgear

Name

• D6100
• R6100
• R7800
• R9000
• WNDR3700v4
• WNDR4300
• WNR2000v5

License

• commercial

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