CVE-2021-27251: high-severity vulnerability in NETGEAR R7800
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.8%
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Authentication is not required to exploit this vulnerability The specific flaw exists within handling of firmware updates. The issue results from a fallback to a insecure protocol to deliver updates. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12308.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
NETGEAR · R7800Related CVEs — NETGEAR R7800
In the same product, most dangerous first.
CVE-2021-27255MEDIUMCVE-2021-27255EPSS 1.4%CVE-2021-27253HIGHCVE-2021-27253EPSS 1.3%CVE-2021-27252HIGHCVE-2021-27252EPSS 1.2%CVE-2021-27256HIGHCVE-2021-27256EPSS 1.0%CVE-2021-34947HIGHNETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.5%CVE-2021-27254MEDIUMCVE-2021-27254EPSS 0.5%