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CVSS: 8.4EPSS: 0%CPEs: 8EXPL: 0

CVE-2021-45679

https://notcve.org/view.php?id=CVE-2021-45679

Certain NETGEAR devices are affected by privilege escalation. This affects R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, and RS400 before 1.5.1.80. Determinados dispositivos NETGEAR están afectados por una escalada de privilegios. Esto afecta a R6900P versiones anteriores a 1.3.3.140, a R7000 versiones anteriores a 1.0.11.126, a R7000P versiones anteriores a 1.3.3.140 y a RS400 versiones anteriores a 1.5.1.80 • https://kb.netgear.com/000064528/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0043 •

CVSS: 8.8EPSS: 0%CPEs: 88EXPL: 0

CVE-2021-34991 – NETGEAR R6400v2 UPnP uuid Stack-based Buffer Overflow Remote Code Execution Vulnerability

https://notcve.org/view.php?id=CVE-2021-34991

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400v2 1.0.4.106_10.0.80 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. When parsing the uuid request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. • https://kb.netgear.com/000064361/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0168 https://www.zerodayinitiative.com/advisories/ZDI-21-1303 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 9.3EPSS: 0%CPEs: 22EXPL: 1

CVE-2021-40847

https://notcve.org/view.php?id=CVE-2021-40847

The update process of the Circle Parental Control Service on various NETGEAR routers allows remote attackers to achieve remote code execution as root via a MitM attack. While the parental controls themselves are not enabled by default on the routers, the Circle update daemon, circled, is enabled by default. This daemon connects to Circle and NETGEAR to obtain version information and updates to the circled daemon and its filtering database. However, database updates from NETGEAR are unsigned and downloaded via cleartext HTTP. As such, an attacker with the ability to perform a MitM attack on the device can respond to circled update requests with a crafted, compressed database file, the extraction of which gives the attacker the ability to overwrite executable files with attacker-controlled code. • https://blog.grimm-co.com/2021/09/mama-always-told-me-not-to-trust.html https://kb.netgear.com/000064039/Security-Advisory-for-Remote-Code-Execution-on-Some-Routers-PSV-2021-0204 • CWE-319: Cleartext Transmission of Sensitive Information •

CVSS: 9.9EPSS: 0%CPEs: 168EXPL: 0

CVE-2021-29068

https://notcve.org/view.php?id=CVE-2021-29068

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6700v3 before 1.0.4.98, R6400v2 before 1.0.4.98, R7000 before 1.0.11.106, R6900P before 1.3.2.124, R7000P before 1.3.2.124, R7900 before 1.0.4.26, R7850 before 1.0.5.60, R8000 before 1.0.4.58, RS400 before 1.5.0.48, R6400 before 1.0.1.62, R6700 before 1.0.2.16, R6900 before 1.0.2.16, MK60 before 1.0.5.102, MR60 before 1.0.5.102, MS60 before 1.0.5.102, CBR40 before 2.5.0.10, R8000P before 1.4.1.62, R7960P before 1.4.1.62, R7900P before 1.4.1.62, RAX15 before 1.0.1.64, RAX20 before 1.0.1.64, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, RAX200 before 1.0.2.102, RAX45 before 1.0.2.64, RAX50 before 1.0.2.64, EX7500 before 1.0.0.68, EAX80 before 1.0.1.62, EAX20 before 1.0.0.36, RBK752 before 3.2.16.6, RBK753 before 3.2.16.6, RBK753S before 3.2.16.6, RBK754 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBK853 before 3.2.16.6, RBK854 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBR840 before 3.2.16.6, RBS840 before 3.2.16.6, R6120 before 1.0.0.70, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.76, R6850 before 1.1.0.76, R6350 before 1.1.0.76, R6330 before 1.1.0.76, D7800 before 1.0.1.58, RBK50 before 2.6.1.40, RBR50 before 2.6.1.40, RBS50 before 2.6.1.40, RBK40 before 2.6.1.36, RBR40 before 2.6.1.36, RBS40 before 2.6.1.38, RBK23 before 2.6.1.36, RBR20 before 2.6.1.38, RBS20 before 2.6.1.38, RBK12 before 2.6.1.44, RBK13 before 2.6.1.44, RBK14 before 2.6.1.44, RBK15 before 2.6.1.44, RBR10 before 2.6.1.44, RBS10 before 2.6.1.44, R6800 before 1.2.0.72, R6900v2 before 1.2.0.72, R6700v2 before 1.2.0.72, R7200 before 1.2.0.72, R7350 before 1.2.0.72, R7400 before 1.2.0.72, R7450 before 1.2.0.72, AC2100 before 1.2.0.72, AC2400 before 1.2.0.72, AC2600 before 1.2.0.72, R7800 before 1.0.2.74, R8900 before 1.0.5.24, R9000 before 1.0.5.24, RAX120 before 1.0.1.136, XR450 before 2.3.2.66, XR500 before 2.3.2.66, XR700 before 1.0.1.34, and XR300 before 1.0.3.50. Determinados dispositivos NETGEAR están afectados por un desbordamiento del búfer por parte de un usuario autenticado. Esto afecta al R6700v3 versiones anteriores a 1.0.4.98, al R6400v2 versiones anteriores a 1.0.4.98, al R7000 versiones anteriores a 1.0.11.106, al R6900P versiones anteriores a 1.3.2.124, al R7000P versiones anteriores a 1.3.2.124, al R7900 versiones anteriores a 1.0.4.26, al R7850 versiones anteriores a 1.0.5.60, al R8000 versiones anteriores a 1.0.4.58, al RS400 versiones anteriores a 1.5.0.48, al R6400 versiones anteriores a 1.0.1. 62, R6700 versiones anteriores a 1.0.2.16, R6900 versiones anteriores a 1.0.2.16, MK60 versiones anteriores a 1.0.5.102, MR60 versiones anteriores a 1.0.5.102, MS60 versiones anteriores a 1.0.5.102, CBR40 versiones anteriores a 2.5.0.10, R8000P versiones anteriores a 1.4.1.62, R7960P versiones anteriores a 1.4.1.62, R7900P versiones anteriores a 1.4.1.62, RAX15 versiones anteriores a 1.0.1.64, RAX20 versiones anteriores a 1. 0.1.64, RAX75 versiones anteriores a 1.0.3.102, RAX80 versiones anteriores a 1.0.3.102, RAX200 versiones anteriores a 1.0.2.102, RAX45 versiones anteriores a 1.0.2.64, RAX50 versiones anteriores a 1.0.2.64, EX7500 versiones anteriores a 1.0.0.68, EAX80 versiones anteriores a 1.0.1.62, EAX20 versiones anteriores a 1.0.0.36, RBK752 versiones anteriores a 3.2.16.6, RBK753 versiones anteriores a 3.2.16. 6, RBK753S versiones anteriores a 3.2.16.6, RBK754 versiones anteriores a 3.2.16.6, RBR750 versiones anteriores a 3.2.16.6, RBS750 versiones anteriores a 3.2.16.6, RBK852 versiones anteriores a 3.2.16. 6, RBK853 versiones anteriores a 3.2.16.6, RBK854 versiones anteriores a 3.2.16.6, RBR850 versiones anteriores a 3.2.16.6, RBS850 versiones anteriores a 3.2.16.6, RBR840 versiones anteriores a 3.2.16. 6, RBS840 versiones anteriores a 3.2.16.6, R6120 versiones anteriores a 1.0.0.70, R6220 versiones anteriores a 1.1.0.100, R6230 versiones anteriores a 1.1.0.100, R6260 versiones anteriores a 1.1.0.76, R6850 versiones anteriores a 1.1.0.76, R6350 versiones anteriores a 1.1.0.76, R6330 versiones anteriores a 1.1.0.76, D7800 versiones anteriores a 1.0.1.58, RBK50 versiones anteriores a 2.6.1.40, RBR50 versiones anteriores a 2. 6.1.40, RBS50 versiones anteriores a 2.6.1.40, RBK40 versiones anteriores a 2.6.1.36, RBR40 versiones anteriores a 2.6.1.36, RBS40 versiones anteriores a 2.6.1.38, RBK23 versiones anteriores a 2.6.1.36, RBR20 versiones anteriores a 2.6.1.38, RBS20 versiones anteriores a 2.6.1.38, RBK12 versiones anteriores a 2.6.1.44, RBK13 versiones anteriores a 2.6.1.44, RBK14 versiones anteriores a 2.6.1. 44, RBK15 versiones anteriores a 2.6.1.44, RBR10 versiones anteriores a 2.6.1.44, RBS10 versiones anteriores a 2.6.1.44, R6800 versiones anteriores a 1.2.0.72, R6900v2 versiones anteriores a 1.2.0. 72, R6700v2 versiones anteriores a 1.2.0.72, R7200 versiones anteriores a 1.2.0.72, R7350 versiones anteriores a 1.2.0.72, R7400 versiones anteriores a 1.2.0.72, R7450 versiones anteriores a 1.2.0.72, AC2100 versiones anteriores a 1. 2.0.72, AC2400 versiones anteriores a 1.2.0.72, AC2600 versiones anteriores a 1.2.0.72, R7800 versiones anteriores a 1.0.2.74, R8900 versiones anteriores a 1.0.5.24, R9000 versiones anteriores a 1.0.5.24, RAX120 versiones anteriores a 1.0.1.136, XR450 versiones anteriores a 2.3.2.66, XR500 versiones anteriores a 2.3.2.66, XR700 versiones anteriores a 1.0.1.34 y XR300 versiones anteriores a 1.0.3.50 • https://kb.netgear.com/000063021/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2020-0155 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVSS: 8.8EPSS: 0%CPEs: 72EXPL: 0

CVE-2021-27239 – NETGEAR Multiple Routers SSDP Stack-based Buffer Overflow Remote Code Execution Vulnerability

https://notcve.org/view.php?id=CVE-2021-27239

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the upnpd service, which listens on UDP port 1900 by default. A crafted MX header field in an SSDP message 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. • https://kb.netgear.com/000062820/Security-Advisory-for-Stack-based-Buffer-Overflow-Remote-Code-Execution-Vulnerability-on-Some-Routers-PSV-2020-0432 https://www.zerodayinitiative.com/advisories/ZDI-21-206 • CWE-121: Stack-based Buffer Overflow •