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TI-2026-08002 Aliases CVE-2026-9105GHSA-whjh-xgqc-hvvf

Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface

Priority LOW 32CWE-121Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01118 66th percentileScored 2026-11-07
Fix Fixed TL-WR841N v14 (TP-Link Systems Inc.): V14_260518

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkTL-WR841N v14before V14_260518V14_260518Patch availableCNA
  • TL-WR841N v14 VendorTP-Link Affected before V14_260518 Fixed in V14_260518 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*before 14_260518VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:*14Running onTP-Link
  • cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:* Versions before 14_260518 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:* Versions 14 Running on ·TP-Link

Remediation

  • Fix · CNA TL-WR841N v14 (TP-Link Systems Inc.) Fixed in V14_260518

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9105
  2. 2026-10-03 Alias added: GHSA-whjh-xgqc-hvvf

References

Patch 2

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
  • TI-2018-08378 An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608… CVSS 3.0CRITICAL 9.8
  • TI-2026-02790 Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N CVSS 4.0HIGH 8.5
See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences