CVE-2024-2856
CWE-121Published: March 24, 2024· Updated: Jun 17, 2026
Official Description
A vulnerability, which was classified as critical, has been found in Tenda AC10 16.03.10.13/16.03.10.20. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg. The manipulation of the argument timeZone leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-257780. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Risk Analysis
A stack-based buffer overflow in the Tenda AC10 firmware allows remote attackers to crash the device or execute arbitrary code. The critical CVSS score of 9.8 highlights the urgency of addressing this remote code execution vulnerability.
While no exploit is listed in the provided status, the vulnerability is remotely exploitable with low complexity. It is not currently in the CISA KEV.
Update the Tenda AC10 firmware to a version beyond 16.03.10.20. Disable remote management features on the router to reduce the attack surface.
Technical Analysis
CVE-2024-2856 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.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (8)
Quick Facts
Related CVEs (CWE-121)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-2856 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts