CVE-2020-15636

high-risk
Published 2020-08-20

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.

Do I need to act?

!
19.8% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Netgear

References (4)

Vendor Advisory https://kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-20-937/
Vendor Advisory https://kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-20-937/
51
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 14/34 · Moderate
Exposure 5/34 · Minimal