Vulnerability in NETGEAR Multiple Routers
CVE-2023-35721
NETGEAR Multiple Routers curl_post Improper Certificate Validation Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the update functionality, which operates over HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-19981.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- NETGEAR Multiple Routers — versions 1.0.12.120_2.0.83
- NETGEAR Rax50
- NETGEAR Rax50 Firmware
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-23-893/ (x_research-advisory, Third Party Advisory)
- kb.netgear.com/000065668/Security-Advisory-for-Improper-Remote-Server-Certifica… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-35721?
- CVE-2023-35721 is a high-severity vulnerability in NETGEAR Multiple Routers, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2024-05-03.
- How severe is CVE-2023-35721?
- High severity. CVSS v3 base score is 8.8 out of 10.