CVE-2026-109683

UPnP Newline Injection Vulnerability in TP-Link Archer BE805

Published Nov 6, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
A newline
injection vulnerability exists in the UPnP service of Archer BE805 v1 such that
an adjacent attacker can supply newline characters in a UPnP port-mapping
description due to improper sanitization, resulting in possible injection of unintended
content into UPnP port-mapping data.









Successful
exploitation may allow an unauthenticated attacker on the local network to
modify runtime UPnP port-mapping information and create spoofed entries within
the affected service. The issue is limited to the integrity of UPnP mapping
data and does not demonstrate code execution or privilege escalation.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer Be805 V1
Vendors & Products Tp-link
Tp-link archer Be805 V1
Type Values Removed Values Added
Description A newline injection vulnerability exists in the UPnP service of Archer BE805 v1 such that an adjacent attacker can supply newline characters in a UPnP port-mapping description due to improper sanitization, resulting in possible injection of unintended content into UPnP port-mapping data. Successful exploitation may allow an unauthenticated attacker on the local network to modify runtime UPnP port-mapping information and create spoofed entries within the affected service. The issue is limited to the integrity of UPnP mapping data and does not demonstrate code execution or privilege escalation.
Title UPnP Newline Injection Vulnerability in TP-Link Archer BE805
Weaknesses CWE-93
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Nov 12, 2026, 6:59 PM
Reserved
Oct 12, 2026, 11:44 PM
Status
Deferred
Published
Nov 6, 2026, 8:17 PM
Modified
Nov 12, 2026, 7:16 PM