// For flags

CVE-2025-6151

TP-Link TL-WR940N, TL-WR841N WanSlaacCfgRpm.htm buffer overflow

Severity Score

7.4
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability, which was classified as critical, has been found in TP-Link TL-WR940N V4. Affected by this issue is some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm. The manipulation of the argument dnsserver1 leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

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.

A vulnerability, which was classified as critical, has been found in TP-Link TL-WR940N V4. Affected by this issue is some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm. The manipulation of the argument dnsserver1 leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-06-15 CVE Reserved
  • 2025-06-17 CVE Published
  • 2025-07-15 CVE Updated
  • 2025-07-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tp-link
Search vendor "Tp-link"
Tl-wr940n
Search vendor "Tp-link" for product "Tl-wr940n"
*-
Affected
Tp-link
Search vendor "Tp-link"
Tl-wr940n Firmware
Search vendor "Tp-link" for product "Tl-wr940n Firmware"
*-
Affected