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VulnerabilityPublished Updated

CVE-2026-15141: The web interface of the affected device relies on the HTTP referrer header as part of request

Source GCVE Database

0
Authoritative record:CVE-2026-15141· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.15.20 Build 260611 Rel.29552n when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.15.20 Build 260611 Rel.29552n
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade TL-WR820N v2 to 1.15.20 Build 260611 Rel.29552n.

Affected software

ProductAffectedFixed in
TP-Link Systems Inc.TL-WR820N v2Affected
  • =0
Fixed in
  • 1.15.20 Build 260611 Rel.29552n

Description

The web interface of the affected device relies on the HTTP referrer header as part of request validation. Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic. Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.

References

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