CVE-2026-9105
Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Description
An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.
INFO
Published Date :
June 29, 2026, 4:16 p.m.
Last Modified :
July 1, 2026, 7:57 p.m.
Remotely Exploit :
No
Source :
f23511db-6c3e-4e32-a477-6aa17d310630
Affected Products
The following products are affected by CVE-2026-9105
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 | ||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Update device firmware to the latest version.
- Restrict access to the web management interface.
- Apply vendor-provided security patches.
- Monitor network traffic for suspicious requests.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9105.
| URL | Resource |
|---|---|
| https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware | Product |
| https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware | Product |
| https://www.tp-link.com/us/support/faq/5152/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9105 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9105
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9105 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9105 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 14_260518 OR cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:* Added Reference Type TPLink: https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware Types: Product Added Reference Type TPLink: https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware Types: Product Added Reference Type TPLink: https://www.tp-link.com/us/support/faq/5152/ Types: Vendor Advisory -
CVE Modified by f23511db-6c3e-4e32-a477-6aa17d310630
Jun. 29, 2026
Action Type Old Value New Value Changed Affected [{'vendor': 'TP-Link Systems Inc.', 'product': 'TL-WR841M v14', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V14_260518', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] [{'vendor': 'TP-Link Systems Inc.', 'product': 'TL-WR841N v14', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V14_260518', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 29, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-9105', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-29T16:18:10.114028Z'} -
New CVE Received by f23511db-6c3e-4e32-a477-6aa17d310630
Jun. 29, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'TP-Link Systems Inc.', 'product': 'TL-WR841M v14', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V14_260518', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] Added Description An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot. Added CVSS V4.0 AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-121 Added Reference https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware Added Reference https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware Added Reference https://www.tp-link.com/us/support/faq/5152/