CVE-2023-46559
CWE-787Published: October 25, 2023· Updated: Jun 17, 2026
Official Description
TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formIPv6Addr.
Risk Analysis
A stack-based buffer overflow in the formIPv6Addr function of the TOTOLINK X2000R firmware allows for potential remote code execution. Given the critical CVSS score, this represents a significant security risk for affected devices.
No public exploit is known, and the vulnerability is not included in the CISA KEV. The flaw is remotely exploitable with low complexity.
Install the latest firmware updates provided by TOTOLINK. Limit access to the device's administrative interface to authorized personnel.
Technical Analysis
CVE-2023-46559 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-46559 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts