Tp-Link: >> Tl-Wr940n Security Vulnerabilities
An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.
CVSS Score
8.5
EPSS Score
0.028
Published
2026-06-17
An authenticated OS command injection vulnerability exists in the BigPond Cable (BPA) WAN configuration module in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.
CVSS Score
8.5
EPSS Score
0.028
Published
2026-06-17
A vulnerability has been found in
TP-Link TL-WR940N V4 and TL-WR841N V11. Affected by this issue is some unknown
functionality of the file /userRpm/WanSlaacCfgRpm.htm, which may lead to buffer overflow. The attack may be
launched remotely. This vulnerability only affects products that are no longer
supported by the maintainer.
CVSS Score
8.2
EPSS Score
0.03
Published
2025-06-17
TP-Link TL-WR940N V3 and V4 with firmware 3.16.9 and earlier contain a buffer overflow via the dnsserver1 and dnsserver2 parameters at /userRpm/Wan6to4TunnelCfgRpm.htm. This vulnerability allows an authenticated attacker to execute arbitrary code on the remote device in the context of the root user.
CVSS Score
8.0
EPSS Score
0.061
Published
2025-01-09
TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR740N V1/V2, TL-WR940N V2/V3, and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/AccessCtrlTimeSchedRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
7.5
EPSS Score
0.007
Published
2023-06-22
TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at /userRpm/WanDynamicIpV6CfgRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
9.9
EPSS Score
0.226
Published
2023-06-22
TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8, TL-WR941ND V5, and TL-WR740N V1/V2 were discovered to contain a buffer read out-of-bounds via the component /userRpm/VirtualServerRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
7.7
EPSS Score
0.006
Published
2023-06-22
An issue in the /userRpm/LocalManageControlRpm component of TP-Link TL-WR940N V2/V4/V6, TL-WR841N V8/V10, and TL-WR941ND V5 allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
7.7
EPSS Score
0.007
Published
2023-06-22
TP-Link TL-WR940N V2/V3/V4, TL-WR941ND V5/V6, TL-WR743ND V1 and TL-WR841N V8 were discovered to contain a buffer overflow in the component /userRpm/AccessCtrlAccessTargetsRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
7.7
EPSS Score
0.006
Published
2023-06-22
TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/QoSRuleListRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.
CVSS Score
7.5
EPSS Score
0.007
Published
2023-06-22
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