Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Published Jun 29, 2026
6.8
MEDIUMCVSS 4.0
EPSS 1.12%
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.
Affected products
-
- Version 0StatusaffectedConstraints<V14_260518
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 | unaffected |
|
- < 14_260518
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jun 29, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Jun–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.12% (0.01118) | 64.95th | v5 (v2026.06.15) |
| Jun 30, 2026 | 0.28% (0.00277) | 19.43th | v5 (v2026.06.15) |
References (3)
- https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware patchProduct
- https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware patchProduct
- https://www.tp-link.com/us/support/faq/5152/ vendor-advisoryVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware | patchProduct | |
| https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware | patchProduct | |
| https://www.tp-link.com/us/support/faq/5152/ | vendor-advisoryVendor Advisory |
Change history (0)
No recorded changes yet.