CVE-2022-24973

HIGH

TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n - Authenticated Stack-based Buffer Overflow in httpd Service

Title source: llm
STIX 2.1

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13992.

References (1)

Core 1
Core References

Scores

CVSS v3 8.0
EPSS 0.0052
EPSS Percentile 67.0%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-121
Status published
Products (1)
tp-link/tl-wr940n_firmware 3.20.1 build_200316
Published Mar 28, 2023
Tracked Since Feb 18, 2026