Buffer overflow in NETGEAR Multiple Routers
CVE-2020-15636
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.085 (94.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.085 · newest: 0.085 · change: 0.000
Affected products
- NETGEAR Multiple Routers — versions 1.0.4.84_10.0.58
- NETGEAR R6700 — versions v3
- NETGEAR R6700 Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zerodayinitiative.com/advisories/ZDI-20-937/ (VDB Entry, Third Party Advisory)
- kb.netgear.com/000062128/Security-Advisory-for-Pre-Authentication-Stack-Overflo… (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-15636?
- CVE-2020-15636 is a critical-severity vulnerability in NETGEAR Multiple Routers, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2020-08-20.
- How severe is CVE-2020-15636?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-15636 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.