Read the docs
TI-2021-08452 Aliases CVE-2021-26827GHSA-772c-rxr6-7vm7

Buffer Overflow in TP-Link WR2041 v1 firmware for the TL-WR2041+ router allows remote…

Priority LOW 36CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Buffer Overflow in TP-Link WR2041 v1 firmware for the TL-WR2041+ router allows remote attackers to cause a Denial-of-Service (DoS) by sending an HTTP request with a very long "ssid" parameter to the "/userRpm/popupSiteSurveyRpm.html" webpage, which crashes the router.

Why it matters now

EPSS 0.01703 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr2041\+_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr2041\+:-:*:*:*:*:*:*:*not specified by NVDRunning onTP-Link
  • cpe:2.3:o:tp-link:tl-wr2041\+_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr2041\+:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-26827
  2. 2026-10-03 Alias added: GHSA-772c-rxr6-7vm7

References

Exploit 1

Sources

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