Cyber Resilience

CVE-2024-3877

HighPublic PoC

Published: 16 April 2024

Published
16 April 2024
Modified
21 January 2025
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0047 65.1th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-3877 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Tenda F1202 Firmware. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 34.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A vulnerability classified as critical was found in Tenda F1202 1.2.0.20(408). Affected by this vulnerability is the function fromqossetting of the file /goform/fromqossetting. The manipulation of the argument qos leads to stack-based buffer overflow. The attack can be launched remotely.…

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The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-260911. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Why these techniques?

Stack-based buffer overflow in the publicly accessible web endpoint /goform/fromqossetting of Tenda F1202 router enables remote code execution via exploitation of a public-facing application.

Affected Assets

tenda
f1202 firmware
1.2.0.20\(408\)

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References