CVE-2023-46555
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 formPortFw.
Risk Analysis
A stack-based buffer overflow in the formPortFw function of the TOTOLINK X2000R firmware allows for critical remote code execution. This vulnerability is highly dangerous due to its ease of exploitation.
No public exploit is currently known, and it is not in the CISA KEV. The flaw is remotely exploitable with low complexity.
Update the device firmware to the latest version. Disable remote management features to mitigate the risk of unauthorized access.
Technical Analysis
CVE-2023-46555 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-2023-46555 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts