Buffer overflow in NETGEAR Rax30
CVE-2023-27361
NETGEAR RAX30 rex_cgi JSON Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of JSON data. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19355.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (56.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- NETGEAR Rax30 — versions 1.0.6.74_1
- NETGEAR Rax30 Firmware
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-23-495/ (x_research-advisory, Third Party Advisory)
- kb.netgear.com/000065625/Security-Advisory-for-Post-Authentication-Buffer-Overf… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-27361?
- CVE-2023-27361 is a high-severity vulnerability in NETGEAR Rax30, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2024-05-03.
- How severe is CVE-2023-27361?
- High severity. CVSS v3 base score is 8.0 out of 10.