CVE-2026-9105Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Updated under an hour ago ()
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It affects TP-Link Systems Inc. TL-WR841N v14 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.8 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Analyzed
- Record last updated
- Jun 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. TL-WR841N v14 tp_link_systems:tl_wr841n_v14 (from the name) | before V14_260518 | CNA record |
tp-link tl-wr841n_firmware tp-link:tl-wr841n_firmware | before 14_260518 | NVD |
References
- https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmwarepatch, product
- https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmwarepatch, product
- https://www.tp-link.com/us/support/faq/5152/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.