CVE-2020-15636

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R6400, R6700, R7000, R7850, R7900, R8000, RS400, and XR300 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The specific flaw exists within the check_ra service. A crafted raePolicyVersion in a RAE_Policy.json 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-9852.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 41.30% Top 5%
Vendor Advisory netgear.com
Affected: NETGEAR Multiple Routers
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-20-937/ vdb entry third party advisory
https://kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-R6700v3-PSV-2020-0224 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15636?
CVE-2020-15636 has been scored as a critical severity vulnerability.
How to fix CVE-2020-15636?
To fix CVE-2020-15636, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15636 being actively exploited in the wild?
It is possible that CVE-2020-15636 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~41% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15636?
CVE-2020-15636 affects NETGEAR Multiple Routers.
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