CVE-2023-37721
CWE-787Published: July 14, 2023· Updated: Jun 17, 2026
Official Description
Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromSafeMacFilter.
Risk Analysis
Tenda routers contain a stack overflow vulnerability in the fromSafeMacFilter function that can be exploited remotely. The 9.8 CVSS score marks this as a critical vulnerability. No active exploitation has been reported.
No public exploit is known for this vulnerability, and it is not listed in the CISA KEV catalog.
Upgrade to the latest firmware provided by the vendor. Disable remote management features to reduce the attack surface.
Technical Analysis
CVE-2023-37721 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 (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-37721 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts