CVE-2026-110958
10 CRITICALPublished 2026-10-15 · Updated 2026-10-15
AI risk analysis
- Summary
- A heap-based buffer overflow in the Wavlink WN530HG4B M30HG4B_V260724 router's api.cgi file allows remote attackers to execute arbitrary code with high privileges. This vulnerability stems from improper memory handling in an unknown function within the API handler.
- Exploitability
- Exploitation is highly likely and requires no special preconditions, as the vulnerability is remotely accessible and has a public exploit available.
- Blast radius
- The impact could be severe across all affected Wavlink routers, potentially allowing attackers to gain full control of the device and use it as a pivot point for network infiltration.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to firmware version 2026-09-24-841a51c6d5_tclinux.bin immediately to resolve this critical heap overflow vulnerability.
Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to resolve this issue. The affected component should be upgraded. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-119, CWE-122
All references
- https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin
- https://drive.google.com/file/d/12OOh8g9YDCbD-Q4cc52J6TH9KuOoD44A/view?usp=drive_link
- https://vuldb.com/cve/CVE-2026-110958
- https://vuldb.com/submit/933388
- https://vuldb.com/vuln/420571
- https://vuldb.com/vuln/420571/cti
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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