CVE-2023-39745

Published: Aug 21, 2023Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

TP-Link TL-WR940N V2, TP-Link TL-WR941ND V5 and TP-Link TL-WR841N V8 were discovered to contain a buffer overflow via the component /userRpm/AccessCtrlAccessRulesRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Affected (3)

Products: Tp Link: Tl Wr940n V2 Firmware, Tl Wr941nd V5 Firmware, Tl Wr841n V8 Firmware

Tp Link

3 products

Tl Wr940n V2 Firmware

Tl Wr941nd V5 Firmware

Tl Wr841n V8 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Tp Link Tl Wr940n V2 Firmware	All versions

Running on/with	Platform Versions
Tp Link Tl Wr940n V2	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Tp Link Tl Wr941nd V5 Firmware	All versions

Running on/with	Platform Versions
Tp Link Tl Wr941nd V5	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Tp Link Tl Wr841n V8 Firmware	All versions

Running on/with	Platform Versions
Tp Link Tl Wr841n V8	All versions

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/16/TP-Link%20WR940N%20WR941ND%20WR841N%20wireless%20router%20userRpmAccessCtrlAccessRulesRpm%20buffer%20read%20out-of-bounds%20vulnerability.md

Source: cve@mitre.org

ExploitThird Party Advisory

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.