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CVE-2026-109683VulnerabilityPublished

Newline Injection Vulnerability Exists

Source GCVE Database

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Authoritative record:CVE-2026-109683· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade to V1.20_1.5.1 Build 261102 or V1.6_1.5.1 Build 261102 when convenient.

Data as of 6 Nov 2026, 22:43 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (TPLink)CVSS 4.05.3
Patch
Available – fixed in V1.20_1.5.1 Build 261102, V1.6_1.5.1 Build 261102
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade Archer BE805 v1 to V1.20_1.5.1 Build 261102 or V1.6_1.5.1 Build 261102.

Affected software

ProductAffectedFixed in
TP-Link Systems Inc.Archer BE805 v1Affected
  • =0
Fixed in
  • V1.20_1.5.1 Build 261102
  • V1.6_1.5.1 Build 261102

AI-suggested

If you cannot patch yet, restrict local network access to the UPnP service to trusted devices to reduce exposure.

Description

A newline injection vulnerability exists in the UPnP service of Archer BE805 version 1. An adjacent attacker on the local network can supply newline characters in a UPnP port-mapping description due to improper input sanitization. This can result in injection of unintended content into UPnP port-mapping data, allowing modification of runtime UPnP port-mapping information and creation of spoofed entries. The vulnerability affects the integrity of UPnP mapping data but does not allow code execution or privilege escalation.

References

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